Question

alguém poderia me ajudar com a distributiva?? -2.(5x-1) +8 = 2.(x-3) - 18

Answer 1

$- 2 \times (5x - 1) + 8 = 2 \times (x - 3) - 18 \\ \\ - 10x + 2 + 8 = 2x - 6 - 18 \\ \\ - 10x - 2x = - 6 - 18 - 2 - 8 \\ \\ - 12x = - 34 \: \times ( - 1) \\ 12x = 34 \\ x = \frac{34}{12} \\ x = 2.833..$