Question

Resolva: e) 12(3+x)=30x

Answer 1

12.(3 + x) = 30x
36 + 12x = 30x
-30x + 12x = -36
-18x = -36.(-1)
 18x = 36
     x = 36/18
     x = 2


Bons estudos !

Answer 2

Resolução:

12( 3 +x ) =30x
36 + 12x =30x
12x - 30x = - 36
-18x = -36
 18x =36
 $x = \frac{36}{18}$
 $x = 2$