Question

решите неравенство
-9-6х>9х+9

Answer 1

-9-6x>9x+9
-6x-9x>9+9
-15x>18
x<-1,2
x∈(-oo;-1,2)

Answer 2

- 6x-9x>9+9
- 15x>18
-5x>6
x< - 1.2
Ответ: ( - ∞; - 1,2)