SOLUTION: Erin's age is 3 times Warren's. In 4 years she will be twice as old as he will be. How old is each now?

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Question 177420: Erin's age is 3 times Warren's. In 4 years she will be twice as old as he will be. How old is each now?
Answer by EMStelley(187) About Me  (Show Source):
You can put this solution on YOUR website!
Let's call Warren's age w. Then Emily is 3w years old. In 4 years from now, Warren will be w+4 and Emily will be 3w+4. If Emily will be twice as old as Warren is in 4 years, we have that
3w+4=2(w+4)
3w+4=2w+8
w=4
So Warren is 4 and Emily is 12.