SOLUTION: Carlo is three times Erwin's age. In 3 years, he will be twice Erwin's age then.Find their present ages.

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Question 936173: Carlo is three times Erwin's age. In 3 years, he will be twice Erwin's age then.Find their present ages.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x Erwin's age. Carlo 3x
....
3x + 3 = 2(x+3)
x = 3, Erwin's age. Carlos is 9 3%2A3
and...checking
12 = 2(6)