Answer:
66
Step-by-step explanation:
12x-30=6x+18
12x-6x=18+30
6x=48
x=8
Plug back In:
12(8)-30
96-30
10
1 11/20
3 3/4 - 2 1/5 = 3 15/20 - 2 4/20 = 1 11/20
Answer: The answer is A, C and D