一次過幫同學搭四條問題 😙一元代數方程

[@tfboysforever0427]

教學詳細清晰易明!解答咗我平時數學好多嘅難題!你亦會常常解答評論區的問題，真的很佩服！subscribe咗啦～

[@user-freetutorial]

多謝支持 😊

[@unclefat9705]

中年男士路過，睇片彷似回年青時上堂時候😊謝謝呢位老師拍片教學，唔該晒。

[@user-freetutorial]

😊

[@sunyuecheung7528]

Thanks very much

[@user-freetutorial]

You are welcome 😊

[@kwunmeichan8013]

7:39 隱形-1

[@user-freetutorial]

唔好意思，我唔係好明你嘅問題，可以問詳細一點嗎？

[@hey0912]

7:39佢嗰個-1係隱形，個意思係咪即係第一題，-1x[…]

[@user-freetutorial]

7:39 同第一條唔同。不如我俾到個例子你
-(10+x) = (-1)(10) + (-1)(x) = -10-x
-(-10-x) = (-1)(-10)+ (-1)(-x) = 10+x

[@idkk3456]

謝謝你的教學片👍🏿我大約明白了😎

[@user-freetutorial]

太好啦 😊

[@贝吉特-v5d]

老是讲的非常好给您一百个赞
、

[@user-freetutorial]

多謝你 😊

[@Natalie1001-n9u]

其實咩係一元一次方程呀？睇咗上條一元一次嘅片都未明，但識做🙏🏻🙏🏻🙏🏻

[@user-freetutorial]

「一元」代表條方程式只有一個代數，例如 x+2 = 5 或者 x² + 2 = 10。「一次」代表條方程式的代數的指數是 1，例如 a + b =5。而這條方程式便不是「一次」x² + 2 = 10 因為x 的指數是 2

[@user-freetutorial]

所以「一元一次方程」代表方程式只有一個代數，而這個代數的指數是1

[@Natalie1001-n9u]

Ok謝謝你

[@XLurenX]

好多謝你啊!!!我數學Quiz終於合格😃😃😃

[@user-freetutorial]

很高興知道我可以幫到你。你繼續加油呀 💪

[@Sheldoniscool730]

I want to know the first question why do we plus fifth teen and not four

[@user-freetutorial]

I presume you are asking why we add 15x on both sides but not minus 4. The reason why I add 15x on both sides is that I want my ‘x’ terms to exist only on the LHS

[@Sheldoniscool730]

Thanks ok

[@shiyishunya]

其實我都會，希望有數學文字題，我文字題真的不好⋯⋯

[@愚人節快樂-i5d]

第四題我個答案啱🎉但係我條題式錯咗😂

[@user-freetutorial]

😅

[@Sheldoniscool730]

The -8x

[@user-freetutorial]

Are you asking about how we get 4-8x on the LHS?
It’s because LHS is 4(x-2) in the previous step,
= 4x - (4)(2)
= 4x - 8

[@Sheldoniscool730]

Ok thanks

[@user-freetutorial]

Welcome

[@Sheldoniscool730]

I am new to this

[@user-freetutorial]

Welcome to my channel 😊