SOLUTION: Please help me wnswer this problem. Sam's age 9years from now is three times her age 15 years ago

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Question 1020551: Please help me wnswer this problem. Sam's age 9years from now is three times her age 15 years ago
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
S+9=3(S-15)
S+9=3S-45
54=2S
S=27
In 9 years S is 36 which is 3 times age 15 years ago, 12