Answer:
B. y=20
Explanation:
Replace -3y with -3(20) to get -60
Now solve for -48.5
11.5-60=-48.5
When you add a positive number to a negative number, you subtract and add the negative to the answer when you are finished.
60-11.5=48.5 meaning 11.5-60=-48.5
If -48.5=-48.5, it means that B is the correct answer.