Germany | Can you solve this? | Math Olympiad

[@maths01n]

Good ❤

[@MasterTMathsClass]

Thanks ✌

[@hangthuy458]

3^x×3^2-3^x=30
3^x(3^2-1)=30
3^x(8)=30
3^x=30/8=15/4
log3^x=log15×4
X=log15/log3+log2^2/log3

[@jimhid2383]

3

[@jimhid2383]

X=3?