Question

Решите неравенства
2(5-х)<4-6x

Answer 1

$2(5-x)\ \textless \ 4-6x \\10-2x\ \textless \ 4-6x \\6x-2x\ \textless \ 4-10 \\4x\ \textless \ -6 \\2x\ \textless \ -3 \\x\ \textless \ -1,5 \\x\in (-\infty;-1,5)$
Ответ: $x\in (-\infty;-1,5)$