SOLUTION: Jeff is three times as old as his son. Jeff will be twice as old as his son in 13 years. How old is Jeff now

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Question 293535: Jeff is three times as old as his son. Jeff will be twice as old as his son in 13 years. How old is Jeff now
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
Jeff Son
J=3S
J+13=2(S+13)
J+13=2S+26
J=2S+13
3S=2S+13
S=13
J=3(13)
J=39