Question

3(x-2)-5(x-1)=-7 quantos da?​

Answer 1

$3(x-2)-5(x-1)=-7 \\ 3x - 6 - 5x + 5 = - 7 \\ 3x - 5x = 6 - 5 - 7$

$- 2x = - 6 \times ( - 1) \\ 2x = 6 \\ x = \frac{6}{2} \\ x = 3$