Question

5(x-40)-2(x-8)=x-166

Answer 1

5x - 200 - 2x + 16 = x - 166
5x - 2x - x = - 166 - 16 + 200
2x = 18
x = 18/2
x = 9

Answer 2

Bem vamos lá:

5x - 200 - 2x + 16 = x - 166
5x - 2x - x = - 166 - 16 + 200
2x = 18
x = $\frac{18}{2}$
x = 9

Bons Estudos!!!