Question

плиз, даю 20 баллов.

Answer 1

$\displaystyle\bf\\\left \{ {{x-5 < 3} \atop {2x\geq -18}} \right. \\\\\\\left \{ {{x < 3+5} \atop {x\geq -9}} \right. \\\\\\\left \{ {{x < 8} \atop {x\geq -9}} \right. \\\\\\Otvet \ : \ x\in\Big[-9 \ ; \ 8\Big)$