document.write( "Question 804703: A father is twice as old as his son, 12 years ago,the father was 4 times older as his son, determine their present ages\r
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Algebra.Com's Answer #484872 by richwmiller(17219)\"\" \"About 
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f=2s,
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\n" ); document.write( "f = 36, s = 18
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