7x+9≤9x-8 решите неравенство

Question

7x+9≤9x-8 решите неравенство

Answer 1

7x-9x<-9-8......-2x<-17....x>8.5

Answer 2

7х+9≤9х-8
7х-9х≤ -8-9
-2х≤ -17
2х≥17
х≥8,5
х∈[8.5 ; +∞)