document.write( "Question 1002111: A father is three times as old as his son. Six years ago he was five times as old as his son. How old are they now?
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Algebra.Com's Answer #619094 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "A father is three times as old as his son.
\n" ); document.write( "F = 3S....(1)
\n" ); document.write( "Six years ago he was five times as old as his son.
\n" ); document.write( "F - 6 = 5(S - 6)......(2)
\n" ); document.write( "Replace F in Equation(2) with 3s from
\n" ); document.write( "Equation (1)
\n" ); document.write( "3S - 6 = 5(S - 6)
\n" ); document.write( "3S - 6 = 5S - 30
\n" ); document.write( "Collect like terms:
\n" ); document.write( "3S - 5S = -30 + 6
\n" ); document.write( "-2S = -24
\n" ); document.write( "2S = 24
\n" ); document.write( "S = 12
\n" ); document.write( "Son is currently 12 years old.
\n" ); document.write( "Father is currently 36 years old.
\n" ); document.write( "Hope this helps :-)
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