Question 1176191
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Father  9x

Son      x



In 3 years

    9x + 3 = 5*(x+3)


Simplify and solve

    9x + 3 = 5x + 15

    9x - 5x = 15 - 3

      4x    =    12

       x    =    12/4 = 3.


<U>ANSWER</U>.  The son is 3 years old.  The father is 9*3 = 27 years old.
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Solved, explained, answered and completed.