Solve a system of three variables

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  • Опубліковано 10 жов 2012
  • 👉Learn how to solve a system of three linear systems. A system of equations is a set of equations which are to be solved simultaneously. A linear equation is an equation whose graph is a straight line. The solution to a system of equations is a set of unique values of the variables for which each of the equation is satisfied.
    ✅ Solve a System of Equations 4 Examples - • Solve a System of Equa...
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    • Solve a System of Equa...
    ✅Solve a System of Equations Using Substitution | Easy
    • Solve a System of Equa...
    ✅Solve a System of Equations Using Substitution | Hard
    • Solve a System of Equa...
    ✅Solve a System of Equations Using Substitution | Learn About
    • Solve a System of Equa...
    ✅Solve a System of Equations Using Elimination | Learn About
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    ✅Solve a System of Equations Using Elimination | Easy
    • Solve a System of Equa...
    ✅Solve a System of Equations Using Elimination | Medium
    • Solve a System of Equa...
    ✅Solve a System of Equations Using Elimination | Hard
    • Solve a System of Equa...
    ✅Solve a System of Equations Word Problem
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    ✅Solve a System of Equations With Three Variables
    • Solve a System of Equa...
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    👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: www.freemathvideos.com/about-me/
    #Systemofequations #Algebraically #brianmclogan

КОМЕНТАРІ • 818

  • @brianmclogan
    @brianmclogan  2 роки тому +23

    ✅ Solve a System of Equations 4 Examples - ua-cam.com/play/PL0G-Nd0V5ZMpDSrQanGyCgmcmvt-C15Id.html

    • @matthieu_fulhaber
      @matthieu_fulhaber Рік тому +1

      Guys, i actually got the following which still work:
      z = -4 ; y = 8 ; x = 1
      all are variables which fit in the equation. Strange that the teacher did't show that there areother solutions to this...?

  • @harmony2484
    @harmony2484 4 роки тому +1493

    When you learn more from youtube than school itself.

    • @Dr.sparky13
      @Dr.sparky13 4 роки тому +7

      Diablo X honestly

    • @joshuasteiner5568
      @joshuasteiner5568 4 роки тому +6

      This is straight facts

    • @bmvs8344
      @bmvs8344 4 роки тому +2

      I agree

    • @AlexandrBorschchev
      @AlexandrBorschchev 4 роки тому +7

      Bruh my class is so slow, were still learning expressions and its been 2 months...probably some grade 4s in china have learned this already and were so behind omg.

    • @jellyjane540
      @jellyjane540 4 роки тому +1

      Studying engr. Courses 101% troooo😆😆😆

  • @tamyrahforbin2010
    @tamyrahforbin2010 5 років тому +1559

    Dont you just love when a teacher explains the steps....thats crazy right

  • @bells7055
    @bells7055 5 років тому +2255

    Anyone else’s teacher not teach at all? 😅

    • @brianmclogan
      @brianmclogan  5 років тому +205

      sorry to hear

    • @bells7055
      @bells7055 5 років тому +91

      Brian McLogan Yeah :// but thankyou so much! I passed my test today !

    • @brianmclogan
      @brianmclogan  5 років тому +151

      awesome! congrats to you

    • @happygilmore8321
      @happygilmore8321 5 років тому +37

      he tries to make video notes like this one but they're nowhere near as good. These videos and some others like these are the only vids that are keeping me from failing

    • @realdvgarg
      @realdvgarg 5 років тому +5

      true that mate.

  • @taylorharris5742
    @taylorharris5742 5 років тому +679

    Mr. McLogan,
    I passed my college placement exam because of your videos. I am a non-traditional student who lost nearly all mathematical knowledge after high school. Thank you so much for uploading all of these great videos. They have been a tremendous help. I also passed my first college-level math exam with a 90 the other day.

    • @hanvinlee4209
      @hanvinlee4209 4 роки тому +11

      Nice!

    • @cicicici4668
      @cicicici4668 3 роки тому +9

      I am relating to u rn

    • @pe_rk
      @pe_rk 3 роки тому +2

      Nice! 🎉🎉😀

    • @poetriv
      @poetriv 2 роки тому +1

      yes! That’s great!

    • @702d02
      @702d02 2 роки тому +1

      good job 👍

  • @sadovuato
    @sadovuato 3 роки тому +79

    I like how he doesn’t say unnecessary complicated stuff that we don’t need to know at all. He just says the steps and makes it easy to understand.

    • @wreckim
      @wreckim Рік тому +2

      You make a good point. That's what this video is for. Just remember that there are other Majors where all that complicated stuff is certainly going to be needed.

  • @meow9426
    @meow9426 6 років тому +847

    Thanks for the help. Nest time i go to the grocery store to buy food ill use this technique to figure out if my tomato soup is boneless

    • @brianmclogan
      @brianmclogan  6 років тому +112

      haha love it

    • @crontsquared230
      @crontsquared230 6 років тому +9

      hi mom I

    • @maxwelleckenrode4676
      @maxwelleckenrode4676 5 років тому +44

      Are you just dropping this joke on all of the 3 variable linear equation videos?

    • @ttvurmom6185
      @ttvurmom6185 5 років тому +1

      maxwell eckenrode, yah, he is.

    • @green_razor8569
      @green_razor8569 5 років тому +8

      Dude you are going to need more advanced math to figure that out

  • @vieamusante5836
    @vieamusante5836 5 років тому +145

    i like that your class is interactive, my class never answers any questions because we literally don’t know what our teacher is saying

    • @DetectiveConan990v3
      @DetectiveConan990v3 3 роки тому +4

      LOL thats rough buddy

    • @phoebe7918
      @phoebe7918 3 роки тому +1

      Lol😢

    • @gotem123
      @gotem123 2 роки тому +4

      Same here, in my class we all just kinda stare at the teacher because he explains everything so much more complicated than it needs to be.

  • @NiveaKhondaker
    @NiveaKhondaker 3 роки тому +78

    He's teaching me more than my Algebra 2 teacher does- and she made everyone who had her go close to failing the whole class.

    • @brianmclogan
      @brianmclogan  3 роки тому +14

      Sorry to hear but so happy to help!!

  • @mixfiz2908
    @mixfiz2908 4 роки тому +180

    superheroes don't wear capes, They wear blue shirts :)

  • @AviionHD
    @AviionHD 4 роки тому +229

    I just learned more in about 13 minutes than I do in my 2 hour math class...

  • @tyronnepatterson2129
    @tyronnepatterson2129 5 років тому +168

    Better mentor than my school teacher thank you so much ,, you don't know how much your helping the youth ....it's really hard to find a teacher that actually even seems like they care about our education and I really appreciate it ❤️

  • @evangelinafelix8084
    @evangelinafelix8084 5 років тому +103

    learned more from this guy than my own algebra instructor.

  • @kso1980
    @kso1980 5 років тому +178

    saved me form an F on my quiz tomorrow to now expecting an A thank you sooo much.

  • @krystigoers1517
    @krystigoers1517 3 роки тому +21

    I love how he labeled his equations I’m gonna start doing that bc I get lost in my own work

  • @blake4249
    @blake4249 6 років тому +37

    10:03 I THOUGHT I WAS THE ONLY ONE

  • @Miranda_Writes
    @Miranda_Writes 6 років тому +98

    You make it a lot easier. The way you set it up makes it less confusing.

    • @brianmclogan
      @brianmclogan  6 років тому +16

      you are very welcome! happy to help

  • @arianieperez1139
    @arianieperez1139 3 роки тому +13

    You have literally been the math tutor I have always needed! I wish I had you as my teacher, I would actually enjoy going to class and solving problems. These videos make my at home life so much easier!!

  • @melbar4734
    @melbar4734 4 роки тому +19

    My teacher didnt even show us how to do this and gave us homework on it :D Thank you so much for your ever helpful videos

  • @klosterst.dominikus7056
    @klosterst.dominikus7056 6 років тому +19

    you are a good teacher. Thanks. well understood.

  • @teambordercontrol4799
    @teambordercontrol4799 2 роки тому +5

    I have expended over two hours with a rather convoluted problem for homework. I attempted to follow along with your instruction and the results were remarkable! Not only was I able to obtain the correct answer I can now elaborate on the rationale for doing what I did on this topic. You have my best regards.

  • @dna0325
    @dna0325 2 роки тому +3

    You know, some teachers are either not enthusiastic about teaching but are skilled and natural at it, or some like mine have the passion but not the talent. 😂 makes it so hard to learn what she is saying and she explains it so bad and this guy is over here explaining it perfectly. Amazing teacher

  • @thelazyeditor1015
    @thelazyeditor1015 3 роки тому +1

    I tried using the book example to solve it, spent an hour getting the wrong answer, watched 5 minutes of this guy and got the right answer in 3 minutes

  • @hehehehhohohoho1753
    @hehehehhohohoho1753 3 роки тому +6

    This is the best teacher ever.

  • @stephensargeant166
    @stephensargeant166 3 роки тому +4

    Your still helping kids that is struggling 8 years later wow.
    Thanks

    • @MathProfessorKyleMartin
      @MathProfessorKyleMartin 2 роки тому

      If you need fresh math videos, I got you covered! Brian does a good job too!

  • @fateji6771
    @fateji6771 5 років тому +13

    I have my midterm finals today, let me just say, this is super helpful! Thank you so much, the way you teach makes it super easy to learn and I totally wish you were my teacher 😂

  • @americaherrera8931
    @americaherrera8931 5 років тому +16

    Saving lives out here 😭😭 THANK YOUUUU

  • @JoseLopez-yd5bl
    @JoseLopez-yd5bl 3 роки тому +7

    I have a test next period and this taught more well than my own teacher and I’m in Ap💀

  • @jasonespinoza1093
    @jasonespinoza1093 4 роки тому +4

    I've learned more from this man than I did from my teacher

  • @user-gs2vw1uy5v
    @user-gs2vw1uy5v Рік тому +4

    although this video was published 10 years ago, it is still helping so many people including me.. thank you teacher♥

  • @ash-je3tw
    @ash-je3tw 6 років тому +61

    OMG JUST WHAT I NEED

  • @JfaJosephR9
    @JfaJosephR9 3 роки тому

    Don't think I've ever watched a UA-cam math teacher simplify things and explain them so clearly and well. This teachers the goat

  • @Luke17d
    @Luke17d 4 роки тому +2

    My teacher just rushed it, didn't even go in depth. Then he let us solve it. I can honestly say 90% of the students did not understand it at all. Thank you for your teaching.

  • @starlightningduelist7273
    @starlightningduelist7273 5 років тому +2

    Thanks, I was confused in my math class and didn’t want to ask for help, you just helped me a bunch!

  • @evee5792
    @evee5792 5 років тому +7

    Thank you so much! You're the best math teacher I never had 😂

  • @jasond.4882
    @jasond.4882 4 роки тому +8

    Absolute lifesaver. we are reviewing this in algebra 2 just for now, and i remembered how to do a regular 2 system, but forgot how to do a 3 system. i have so many after school activites and one of them cuts into my 7th period(math) which effectively cuts my learning. thank goodness this guy exists because i would be completely lost withought him

    • @elisha7130
      @elisha7130 4 роки тому +2

      my algebra 2 teacher doesn’t explain it correctly and this video really saved my life cause i have a test on tuesday

  • @aaroncatelli5032
    @aaroncatelli5032 4 роки тому +9

    Congratulations! you can teach and you actually make sense, my teacher on the other hand ehh

  • @nbstars1012
    @nbstars1012 3 роки тому +1

    You’re out here still saving lives. Thanks for the help👍

  • @wolfumus
    @wolfumus 4 роки тому +1

    I manually typed in the url for this video from a paper worksheet because I was so desperate for help. Thank you so much!!!

  • @Diamond_Hanz
    @Diamond_Hanz 5 років тому +6

    teacher : z = 3
    student: what is y?
    teacher: *angry face* y is 3!
    lol

  • @megal0maniac
    @megal0maniac 7 місяців тому

    dude i swear you and the organic chemistry tutor are the best math teachers on youtube, thank you so much for another helpful video!

  • @caratjoy8586
    @caratjoy8586 3 роки тому +1

    My teacher is good but goes over stuff veryyy quick. Thanks for this vid

  • @homeyholmes5024
    @homeyholmes5024 2 роки тому

    Mr. Mclogan needs to be paid his weight in gold! He's an incredible straight to the point instructor. God I wish he was my math teacher!

  • @Sai-wf8pz
    @Sai-wf8pz 4 роки тому +3

    Im taking alg 2 trig in school and since i did alg 1 two yrs ago i kinda forgot the fundamentals lol. U help me a lot. My teacher goes rly fast and never explains his steps. Thank u for helping

  • @fabioladelcid2122
    @fabioladelcid2122 5 років тому +17

    You’re better than my teacher 😂😂😂 i didn’t understand him but I understood you

  • @kallyruan5679
    @kallyruan5679 2 роки тому +1

    I love how Brian McLogan was like "so z is equal to -1, z, i mean x is equal to -1 and z is equal to 3." He must love the letter z haha.

  • @deziolivas9908
    @deziolivas9908 5 років тому +1

    thank you for making these videos. i always come to your channel whenever i need help. my professor isn’t the best at teaching. well, i’m sure she’s great, but i learn at a slower pace. she shows us nothing but short cuts. it confuses me. your videos help me out tremendously because you explain every single step. thank you so much!

  • @bettyechavarria7710
    @bettyechavarria7710 6 років тому +24

    When you multiplied equation A and B how did you come up with -5 and 2?

    • @brianmclogan
      @brianmclogan  6 років тому +13

      Those are the scalars that allow me when multiplied to obtain the same coefficients for y so that y can be eliminated when I combine the equations

    • @Brobecreative35
      @Brobecreative35 6 років тому +4

      Betty Echavarria oh because basically when he did A he was multiplying a negative by negative giving him a positive, so to cancel out y he need B to be negative and positive 2 was a good solution for that

    • @Jnan._.
      @Jnan._. 3 роки тому +1

      I had the same querie and the responses helped me a lot.Thanks:)

  • @kamara6392
    @kamara6392 Рік тому +4

    Math is just throwing numbers around until it makes sense 😒. Like who really thought of this 😑

  • @77-Cold
    @77-Cold 2 роки тому

    It's so nice how you get to understand the steps thoroughly on yt.

  • @KamikazeeBasher
    @KamikazeeBasher Рік тому

    best explanation of how to do this ive seen out of all the other youtube videos i watched, thank you!

  • @malgwengreenleaf9427
    @malgwengreenleaf9427 2 роки тому

    This is torturous, but he makes it bearable. Thank you, Mr. McLogan you always come in clutch!

  • @KKISCRAZYFUL
    @KKISCRAZYFUL 3 роки тому +1

    Thank you so much! I keep re-reading my textbook and it just didn't make sense but this video helped a lot!

  • @willssnowboardclips748
    @willssnowboardclips748 2 роки тому

    Massive thanks to this guy, allows me to mess around in class, go home, watch a 10 min video and be better off than if I payed attention

    • @MathProfessorKyleMartin
      @MathProfessorKyleMartin 2 роки тому

      We do it even faster on my channel. Take a look if you want more time to mess around 😉 or don't... up to you, but I bet you'd like my bumper video

  • @alexandriavalladares9222
    @alexandriavalladares9222 5 років тому +1

    You are such a big help !! So much better than tutoring !

  • @ryankeshet5820
    @ryankeshet5820 4 роки тому

    Fantastically simple explanation. Thank you!

  • @waishansari7547
    @waishansari7547 5 років тому +4

    You are a good teacher i always remember my school days after watching your videos, love from india..😘

  • @lotofolive8856
    @lotofolive8856 5 років тому +3

    Tysm I was struggling so hard and you explained it perfectly

  • @CHEENATalks
    @CHEENATalks 5 років тому +2

    So much help!! begillien times better of a teacher then mine!

  • @kudduhappy7968
    @kudduhappy7968 5 років тому +2

    Thank u so much sir.......i was having a lot of doubts with 3 variables......

  • @glomari62
    @glomari62 3 роки тому

    Thank you very much. So much easier than how my lecturer explained it. Now i will be able to pass my coursework and exam.

  • @midwestrailroadproductions8116
    @midwestrailroadproductions8116 5 років тому +5

    That's a really great video on systems, Brian.

  • @sofiavargas846
    @sofiavargas846 5 років тому +1

    Thanks for the help! I’m gonna pass this algebra test :)

  • @anthonykings5860
    @anthonykings5860 6 років тому +7

    Thanks a lot! Very helpful 👌🏾👍🏾

  • @nathanows7
    @nathanows7 5 років тому +3

    This video really helped. Thank you so much 🙏🏾. I was studying for a math test on linear systems and forgot study this, but your video made me understand it very well. I understood what to do halfway through the video 😅👍🏾

  • @saharaamazinglady
    @saharaamazinglady 4 роки тому

    Rlly glad and grateful for these videos, theyre guiding me through.

  • @jenrenee2281
    @jenrenee2281 5 років тому +1

    you are great, keep doing what your doing. you make everything easier to understand thanks 😇

  • @solokialo8373
    @solokialo8373 Рік тому +1

    Very well understood.
    Thank you !

  • @janinethequeen7149
    @janinethequeen7149 5 років тому +1

    I have a unit test today and my teacher spent 10 min teaching us this before and I didn’t understand anything. So thanks for the help

  • @DRat_
    @DRat_ 4 роки тому

    i am so happy you made this, even tho it has been eight years i am now doing distance learning because of Covid-19 and struggle with math. this made it so much easier to understand and is going to let me graduate.

  • @jackgaines1772
    @jackgaines1772 4 роки тому

    Very helpful video! wish i had you as my teacher. I understand the topic now!!

  • @1kinalyami869
    @1kinalyami869 5 років тому +6

    Believe me, my professor, that if you translate Arabic translation on your clips will spread and harvest high views

  • @amandar5600
    @amandar5600 6 років тому

    You are awesome! You just saved my math life.. I could not for the life of me properly organize and label these problems without getting myself all lost.

  • @rylandlopez01
    @rylandlopez01 2 роки тому

    Dang you really helped me out for my test tomorrow, I know I'm 9 years late but thanks for finally making it click

  • @xuehuamao
    @xuehuamao 10 місяців тому

    thank you so much, my teacher's way of explaining this was confusing so I looked for your vids and this helped me a lot :)

  • @DJ-vi1ix
    @DJ-vi1ix 2 роки тому

    Thank you for the very clear explaination!

  • @veliagonzalez1782
    @veliagonzalez1782 4 роки тому

    Awesome!!! Now I can finish my math. Thank you.

  • @1829Emily
    @1829Emily 4 роки тому +1

    Thank you for this video, very clearly presented information

  • @nathanmurray2891
    @nathanmurray2891 5 років тому

    This was very helpful, just the only bad thing with learning from videos is you can’t ask questions.

  • @its._.dessie3154
    @its._.dessie3154 4 роки тому +1

    Very helpful thank u so much 🙏🏾‼️

  • @dianedavidson8536
    @dianedavidson8536 4 роки тому

    When you break the three together into two sets of two together - 1, 2, 3 into 1 & 2 and then 2 & 3 - do you have to multiply 3 times 2 for both - or could you put 3 times for one and then something else for the other? If 3 had different coefficients?

  • @nekukool4306
    @nekukool4306 5 років тому +1

    Have a test tomorrow and this video is really helping me with understanding this lesson thanks so much!

  • @matthieu_fulhaber
    @matthieu_fulhaber Рік тому +1

    Guys, i actually got the following which still work:
    z = -4 ; y = 8 ; x = 1
    all are variables which fit in the equation. Strange that the teacher did't show that there areother solutions to this...?

  • @dequariusforester8081
    @dequariusforester8081 5 років тому +6

    "why is why" xD

  • @JuniorWA
    @JuniorWA 6 років тому

    Thanks again. You're a great instructor.

  • @ericratliff217
    @ericratliff217 2 роки тому

    Currently 2 am and I have a test over this stuff tomorrow. You really helped me and now I’m able to sleep.

  • @joshuasteiner5568
    @joshuasteiner5568 4 роки тому

    Thanks for the save, we all know Brian is the best teacher out there

  • @christiancolewan
    @christiancolewan 3 роки тому

    sanaol nalang sa mga may teacher na ganito ;DD

  • @marm.8469
    @marm.8469 2 роки тому

    "yes no maybe so" the mantra of every math teacher ever haha

  • @hellokuromi
    @hellokuromi 4 роки тому

    Wow !!! This was really helpful, thank you !!

  • @Alicia-nb2sf
    @Alicia-nb2sf 4 роки тому

    Like 5 weeks into school and my teacher doesn’t teach us anything. Plus my lam class is first period so he’s always writing notes instead of teaching. Just found out I have a test on this tomorrow.
    I have no idea how to study and it’s worth 60 percent of my grade this is helping A LOT

  • @deiluxx074
    @deiluxx074 4 роки тому +2

    7 year old video is better than 35 year old teacher ಥ‿ಥ

  • @Qq-lp5xg
    @Qq-lp5xg 5 років тому +4

    What class is this? Also great videos, very helpful for algebra and pre calculus!

  • @henrygonzalez618
    @henrygonzalez618 5 років тому +1

    Wow this lecture is clear and wel explained! I'm impressed and amazed.

    • @brianmclogan
      @brianmclogan  5 років тому +2

      happy to e able to help Henry!!

  • @Wifistaxx
    @Wifistaxx 4 роки тому +14

    I feel like math should be taught online instead in person. My teacher goes too fast in the lesson which makes me stay really behind

    • @Vlora.
      @Vlora. 4 роки тому

      My teacher doesn't explain at all

    • @Aya-hq1cu
      @Aya-hq1cu 4 роки тому +1

      Coming from quarantine I can agree.

  • @annango4
    @annango4 3 роки тому

    this video much more easier than my professor's video.
    thank you so much. :)))))

  • @chaninagenade2754
    @chaninagenade2754 3 роки тому

    Thank You Mr.McLogan!!!!!

  • @LivingDead53
    @LivingDead53 6 років тому

    Super easy idea, horribly difficult to do. Thank you for another good video!

  • @jamesjackson815
    @jamesjackson815 5 років тому +1

    Thanks so much this video really helped me

  • @lamonicahall3274
    @lamonicahall3274 4 роки тому

    You’re sooo much better than my professor 🙄. Thank you