First, you need to do the distubutive property, you should get 18m+30=66. Then you could subtract 30 from both sides. Then, you should get 18m = 36. You will then divide both sides by 18. Your answer should be m = 2. Hope this helps!
Distribute the 6 (18m+30)=66 Then subtract 30 from 66 18m=36 Then divide 36 by 18 M=2