SOLUTION: Austin is 21 years younger than Shantel. 2 years ago, Shantel's age was 2 times Austin's age. How old is Austin now?

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Question 1146077: Austin is 21 years younger than Shantel. 2 years ago, Shantel's age was 2 times Austin's age. How old is Austin now?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
A, Austin
A+21, Shantel
A+19, Shantel two years ago

A%2B19=2%28A-2%29----------the description for two years ago;
Solve for A.