Question

4x-7=8x-2 qual ea resposta ?

Answer 1

4x-7=8x-2
4x-8x=-2+7
-4x=5.(-1)
4x=-5
x=$\frac{-5}{4}$

Answer 2

4x-7=8x-2
4x-8x=+7-2
-4x=-5
5/4 positivo