Question

даю 30 баллов

2(3x+7)-8(x+3)≤ 0

Answer 1

$2(3x+7)-8(x+3) \leq 0 \\ 6x+14-8x-24 \leq 0 \\ -2x-10 \leq 0 \\ 2x+10 \geq 0\\ 2x \geq -10 \\ x \geq -5 \\ x \in [-5;+\infty)$