Question

qual o valor de :
5x-40=2-x ?

Answer 1

5x-40=2-x
5x + x = 2 + 40
6x = 42
x = 42/6
x = 7

Answer 2

5x - 40 = 2 - x
5x + x = 2 + 40
6x = 42
x =  42 
       6
x = 7

Bons estudos..(;