SOLUTION: Demtris is 14 years older than Sam. In 9 years he will be twice her age. How old are Demetris and sam?

SOLUTION: Demtris is 14 years older than Sam. In 9 years he will be twice her age. How old are Demetris and sam?

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Question 273821: Demtris is 14 years older than Sam. In 9 years he will be twice her age. How old are Demetris and sam?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Demetris's age now
Let = Sam's age now
= Demetri's age in 9 years
= Sam's age in 9 years
given:

(1)
and

(2)
Subtract (2) from (1)
(1)
(2)

and, from (1)

Demetri is 19 and Sam is 5
check:

OK
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