document.write( "Question 824438: the sum of the age of father and son is now 48 , what was the sum of their age ten years ago? \n" ); document.write( "
Algebra.Com's Answer #496493 by stanbon(75887)\"\" \"About 
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the sum of the age of father and son is now 48 , what was the sum of their age ten years ago?\r
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\n" ); document.write( "Equation:
\n" ); document.write( "f + s = 48
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\n" ); document.write( "f-10 + s-10 = 48-20
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\n" ); document.write( "Answer: 28 yrs
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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