-1< 2х+1 <1 решите двойное неравенства
- 1 \\ 2x + 1 < 1 \\ x > - 1 \\ x < 0 \\ x \: e( - 1 . \: 0)" alt=" - 1 < 2x + 1 \\ 2x + 1 > - 1 \\ 2x + 1 < 1 \\ x > - 1 \\ x < 0 \\ x \: e( - 1 . \: 0)" align="absmiddle" class="latex-formula">