SOLUTION: Jim is twelve years old. His father is three times as old. In how many years will the sum of their ages be sixty-eight?

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Question 815427: Jim is twelve years old. His father is three times as old. In how many years will the sum of their ages be sixty-eight?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
j = 12
f = 36
W(y) = (j + y) + (f + y) ?= 68
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W(y) = (12 + y) + (36 + y) ?= 68
(12 + y) + (36 + y) = 68
48 + 2y = 68
2y = 20
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y = 10
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