document.write( "Question 824070: The son is 20 years younger than the father. 10 years ago the father was 3 times the son's age. How old is the son, and how old is the father \n" ); document.write( "
Algebra.Com's Answer #496039 by richwmiller(17219)\"\" \"About 
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f=20+s,
\n" ); document.write( "f-10=3*(s-10)
\n" ); document.write( "f = 40, s = 20
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