Question

21 решите систему неравенств

Answer 1

Получится вот так :)

Answer 2

$\left \{ \frac{x}{6}+ \frac{x}{3} \ \textless \ 2 } \atop {2- \frac{1}{3}x\ \textgreater \ 0 }} \right. \\ \left \{ {{x+2x\ \textless \ 12} \atop {6-x\ \textgreater \ 0}} \right. ; \left \{ {3x\ \textless \ 12} \atop {-x\ \textgreater \ -6}} \right. ; \left \{ {{x\ \textless \ 4} \atop {x\ \textless \ 6}} \right.$

Ответ x∈(-∞;4)