Question

daca x+2 supra 3=12supra9 , atunci x=

Answer 1

(x+2)×9=12×3 = 9x+18=36 = 9x=36-18 = 9x=18 = x=18÷9 =2

Answer 2

$\frac{x+2}{3}= \frac{12}{9}$⇒3(x+2)=12⇒x+2=4⇒x=2