SOLUTION: Kevin is 6 years older than Timothy, and 4 years ago Kevin was twice as old as Timothy. Find their present ages.

Question 1024611: Kevin is 6 years older than Timothy, and 4 years ago Kevin was twice as old as Timothy. Find their present ages.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Kevin's age now
Let = Timothy's age now
---------------------------
(1)
(2)
----------------------
(2)
Substitute (1) into (2)
(2)
(2)
(2)
and
(1)
(1)
(1)
-------------------
Kevin is 16
Timothy is 10
------------
check:
4 yrs ago Kevin was 12
4 yrs ago Timothy was 6
Kevin was twice his age
OK
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