document.write( "Question 948193: a father is now 3 times as old as his son.twelve years ago,he was six times as old as his son.how old are the son and the father \n" ); document.write( "

Algebra.Com's Answer #578737 by Fombitz(32388) $\"\"$ $\"About$

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$\"F=3S\"$
\n" ); document.write( " $\"F-12=6%28S-12%29\"$
\n" ); document.write( " $\"F-12=6S-72\"$
\n" ); document.write( " $\"F-6S=-60\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"3S-6S=-60\"$
\n" ); document.write( " $\"-3S=-60\"$
\n" ); document.write( " $\"S=20\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"F=3%2820%29\"$
\n" ); document.write( " $\"F=60\"$
\n" ); document.write( " \n" ); document.write( "

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