Question

5x -12=8
_
3 .o cinco é sobre o 3.

Answer 1

5 X - 12 = 8 . 3
5 X = 8 . 3 + 12
5X = 36
X= 36 : 5
X= 7 , 2

Answer 2

$\frac{5x}{3} -12=8$
$\frac{5x}{3} =8+12$
$\frac{5x}{3} =20$
$5x=20x3$
$5x=60$
$x=\frac {60}{5}$
$x=12$

abçs...