SOLUTION: Trey is 40 years younger than Heather. 3 years ago, Heather's age was 3 times Trey's age. How old is Trey now?

Question 987883: Trey is 40 years younger than Heather. 3 years ago, Heather's age was 3 times Trey's age. How old is Trey now?

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Trey's age now
Let = Heather's age now
= Trey's age 3 yrs ago
= Heather's age 3 yrs ago
----------------------------------
(1)
(2)
-------------------------
(2)
(2)
and
(1)
----------------------
Add (1) and (2)

Trey is 23 now
-----------------
check:
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
OK

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