Question

Помогите, пожайлуста

Answer 1

$-6\leq \frac{5-2x}{3}\leq 2\\\\-6*3\leq \frac{5-2x}{3}*3\leq 2*3\\\\-18\leq 5-2x\leq 6\\\\-18-5\leq-2x\leq 6-5\\\\-23\leq -2x\leq 1\\\\-0,5\leqx\leq x\leq 11,5$

Ответ : x ∈ [- 0,5 ; 11,5]