Question

9 x - 13 x - 23 = - 27 Qual é a resposta ?

Answer 1

-4x-23=-27 -> -4x=-27+23 -> -4x=-4.(-1) -> x=4/4 -> x= 1 

Answer 2

9 x - 13 x - 23 = - 27 
9 x - 13 x = - 27 + 23
-4x = -4
x = 1