Answer:
Step-by-step explanation:
1. Subtract 9m from both sides.
6m-6-9m=9m+15-9m
-3m-6=15
2. Add 6 to both sides
-3m-6+6=15+6
-3m=21
3. Divide both sides by -3
-3m/3=21/-3
m= -7
