Question

simplificar a equaçao 5x-2.(x-7)-6=17

Answer 1

$5x - 2 \times (x - 7) - 6 = 17 \\ 5x - 2x + 14 - 6 = 17 \\ 3x + 8 = 17 \\ 3x = 17 - 8 \\ 3x = 9 \\ x = \frac{9}{3} \\ x = 3$