document.write( "Question 1079256: If the sum of the ages of a father and his son is 50 in 2012 and presently the difference between their ages is 30.find the ages of the father and his son \n" ); document.write( "

Algebra.Com's Answer #693590 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
So 5 years ago,
\n" ); document.write( " $\"F-5%2BS-5=50\"$
\n" ); document.write( " $\"F%2BS-10=50\"$
\n" ); document.write( "1. $\"F%2BS=60\"$
\n" ); document.write( "and today,
\n" ); document.write( "2. $\"F-S=30\"$
\n" ); document.write( "Add 1 and 2,
\n" ); document.write( " $\"F%2BS%2BF-S=60%2B30\"$
\n" ); document.write( " $\"2F=90\"$
\n" ); document.write( "Solve for F then use either equation to solve for S.
\n" ); document.write( " \n" ); document.write( "

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