SOLUTION: In 4 years time, Sam will be twice as old as he was 4 years ago. What is his current age?

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Question 988351: In 4 years time, Sam will be twice as old as he was 4 years ago. What is his current age?
Answer by macston(5194)   (Show Source): You can put this solution on YOUR website!
.
S=Sam's age
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S+4yrs=2(S-4yrs)
S+4yrs=2S-8yrs
S+12yrs=2S
12yrs=S
.
ANSWER: Sam is 12 years old.

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