Реши неравенство -(3d+2) +(d-7)<0

Question

Реши неравенство -(3d+2) +(d-7)<0

Answer 1

-(3d+2)+(d-7)<0<br>-3d-2+d-7<0<br>-2d<9<br>2d>-9
d>-4,5
Ответ: (-4,5; +∞)

Answer 2

-3d-2+d-7{0
-2d}9
d{-4.5