Answer:
All of them are yes because you either subtract or add to put in the form of mx+b
Answer:
V=πr2h
Step-by-step explanation:
Answer:

Step-by-step explanation:
General equations are in the form 
So you can add 6 to both sides to make:

Answer:
Step-by-step explanation:
54 equals 9 more than a number
So if we do this, we get
54 = x+9
x+9 = 54
54-9=x
54-x = 9