Question

Решите пример номер 5.19 пж срочно

Answer 1

$\left \{ {{-2x \leq -4} \atop {3x\ \textless \ 21}} \right.\\\\ \left \{ {{x \geq 2} \atop {x\ \textless \ 7}} \right.$
                    /////////////////////////////////////////////////////////
_________________________₀____________
                     2                           7
 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
x ∈ [2 ; 7)

Answer 2

Вроде так должно быть