SOLUTION: Thirteen years from now Amanda will be twice as old as she was seven years ago. Her present age is?

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Question 129412: Thirteen years from now Amanda will be twice as old as she was seven years ago. Her present age is?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let's call Amanda's age right now, A.
A%2B13=2%28A-7%29
A%2B13=2A-14
-A=-27
A=27
Check your answer.
13 years from now, Amanda will be 40.
7 years ago, Amanda was 20.
The original statement is verified.
Amanda is 27 years old.