Answer:
M ≤ -9
Step-by-step explanation:
Given that:
M/3-3 ≤ -6
Adding 3 to both sides we get:
M/3-3+3 ≤ -6+3
M/3 ≤ -3
Multiplying by 3 on both sides we get
3*M/3 ≤ -3*3
So its the required answer.
I hope it will help you!