Hello from MrBillDoesMath!
Answer:
(1/3) x <= -6 when x >= 18
Discussion:
Solve the inequality:
-(1/3)x < = -6
Add +(1/3)x and + 6 to both sides:
- (1/3)x + (1/3x) + 6 <= -6 + (1/3)x + 6 =>
0 + 6 <= (1/3)x => (multiply both sides by 3)
6*3 <= 3 (1/3) x =>
18 <= x
Regards,
MrB