SOLUTION: Aidan is 90 years old. Jane is 18 years old. How many years until Aidan's age is 3 times Jane's age?

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Question 1169067: Aidan is 90 years old. Jane is 18 years old. How many years until Aidan's age is 3 times Jane's age?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
A and J are both given.
x, unknown in how many years

A%2Bx=3%28J%2Bx%29
-
A%2Bx=3J%2B3x
A-3J=3x-x
A-3J=%283-1%29x
x=%28A-3J%29%2F%283-1%29