SOLUTION: Samantha is twice Helen's age. Three years ago, the sum of their age was 45. How old will Helen be in 3 years?

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Question 1023933: Samantha is twice Helen's age. Three years ago, the sum of their age was 45. How old will Helen be in 3 years?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
S = Samantha's age
H = Helen's age

S = 2H
(S-3)+(H-3) = 45

Plug in the first equation into the second.

2H - 3 + H - 3 = 45
3H = 51
H = 17

Samantha is 34 and Helen is 17.