SOLUTION: Author is 10 years older than Carol. 9 years ago his age was 3 times her age. How old will they each be in 4 years?

Question 697611: Author is 10 years older than Carol. 9 years ago his age was 3 times her age. How old will they each be in 4 years?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Arthur's age now
Let = Carol's age now
given:
(1)
(2)
-----------------------
(2)
(2)
and
(1)
------------------
Subtract (2) from (1)
(1)
(2)

and
(1)
(1)
(1)
--------------

In 4 years Arthur will be 24
In 4 years Carol will be 18
----------------------
check:
(2)
(2)
(2)
(2)
OK

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