Answer 6

Answer 7

B

B

B

B

B

Now, how do you get C all by itself You have to divide by AB so those cancel out. But since it is an = sign, it is balanced, so anything you do to one side, you need to do the same to the other to keep it equal. So divide BOTH sides by AB

Answer 7

A .!

What you do to one side you gotta do to the other.