SOLUTION: sum of the ages of art, ben, and cal is 59. art is 1 yr. older than cal and cal is 1 yr. younger than ben, who, if anyone, was a teenager 7 yrs. ago?
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Question 716050: sum of the ages of art, ben, and cal is 59. art is 1 yr. older than cal and cal is 1 yr. younger than ben, who, if anyone, was a teenager 7 yrs. ago? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! (1)
(2)
(3)
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(3)
Substitute (2) and (3) into (1)
(1)
(1)
(1)
(1)
and
(2)
(2)
(2)
and
(3)
(3)
(3)
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check:
(1)
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and
and
7 yrs ago, Art and Ben were teenagers