SOLUTION: Father's age is six times his son's age. Nine years hence the age of father will be three times his son's age. Find their present ages.

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Question 743426: Father's age is six times his son's age. Nine years hence the age of father will be three times his son's age. Find their present ages.
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Father's age is six times his son's age. Nine years hence the age of father will be three times his son's age. Find their present ages.
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Equations:
f = 6s
f+9 = 3(s+9)
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Substitute for "f" and solve for "s":
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6s+9 = 3s + 27
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3s = 18
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s = 6
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Cheers,
Stan H.
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