Question

Решите двойное неравенство -3<2x-1<4

Answer 1

$-3\ \textless \ 2x-1\ \textless \ 4\\ -3+1\ \textless \ 2x\ \textless \ 4+1\\ -2\ \textless \ 2x\ \textless \ 5\ \ |:2\\ -1\ \textless \ x\ \textless \ 2.5$
Ответ: (-1; 2,5)