Question

5(1-×)-2×+1=-3(2+×)​

Answer 1

Resposta:

5 (1-x)-2x+1=-3 (2+x)

5-5x-2x+1=-6-3x eliminação de parênteses

-5x-2x +3x =-6-5-1

-4x=-12 /(-1)

4x =12

x=12

4

x=3