Question

Решите системy. 14 баллов

Answer 1

$\left \{ {{ \frac{6x}{3}\ \textless \ \frac{5x}{5},} \atop {-3x-15 \leq -2x-8;}} \right.$
$\left \{ {{ 2x \textless \ x,} \atop {3x+15 \geq2x+8;}} \right.$
$\left \{ {{ x\textless \ 0,} \atop {x\geq-7.}} \right.$
Ответ: [-7;0).

Answer 2

$\left \{ {{6x+3\ \textless \ 5x+5} \atop {-3x-15 \leq }-2x-8} \right.$
$\left \{ {{6x-5x\ \textless \ 5-3} \atop {-3x+2x \leq 15-8}} \right.$
$\left \{ {{x\ \textless \ 2} \atop {-x \leq 7} \right.$
$\left \{ {{x\ \textless \ 2} \atop {x \geq -7} \right.$

Ответ: x∈[-7;2)