Question 214826
Let  F=fathers  age  now,,,,and  S= son's  age  now
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(1)  F=3s
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(2)  (F+14) = 2(S+14)
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F+14 = 2S +28
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subst  from  (1),,,,(3S) +14 = 2s +28
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S= 14,,,,,and  F=3(14) =42
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checking,,,(42 +14) = 2(14) + 28
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56 = 56,,,,ok
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