Реши неравенство −(3d+6)+(d−7)

Question

Реши неравенство −(3d+6)+(d−7)<0

Answer 1

- \frac{13}{2} \\ d > - 6.5 " alt=" - (3d + 6) + (d - 7) < 0 \\ - 3d - 6 + d - 7 < 0 \\ - 2d - 13 < 0 \\ - 2d < 13 \\ - d < \frac{13}{2} \\ d > - \frac{13}{2} \\ d > - 6.5 " align="absmiddle" class="latex-formula">

Ответ: