SOLUTION: Amy is 7 years older than Tom while Tom is twice as old as Jill. Chris is 3 times as old as Amy. If the sum of Chris and Amy's age is 68. Find Toms age. Please help. i have t

Question 509695: Amy is 7 years older than Tom while Tom is twice as old as Jill. Chris is 3 times as old as Amy. If the sum of Chris and Amy's age is 68. Find Toms age.

Please help. i have the answer but my equation is wrong...
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Amy's age
Let = Tom's age
Let = Jill's age
Let = Chris's age
----------------------
given:
(1)
(2)
(3)
(4)
--------------
There are 4 unknowns and 4 equations
so this should be solvable
Substitute (3) into (4)
(4)
(4)
(4)
(4)
Substitute this result into (1)
(1)
(1)
(1)
(1)
Substitute this result into (2)
(2)
(2)
(2)
and, also
(3)
(3)
(3)
----------------
Amy's age is 17
Tom's age is 10
Jill's age is 5
Chris's age is 51

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