document.write( "Question 441712: bob is twice as old as sue. ten years ago bob was three times as old as sue was then. find the present ages of sue and bob. \n" ); document.write( "
Algebra.Com's Answer #304805 by robertb(5830)\"\" \"About 
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bob = 2s
\n" ); document.write( "sue = s\r
\n" ); document.write( "\n" ); document.write( "2s - 10 = 3(s-10)
\n" ); document.write( "==> 2s - 10 = 3s - 30
\n" ); document.write( "==> -10+ 30 = 3s - 2s\r
\n" ); document.write( "\n" ); document.write( "==> s = 20, the age of sue now ==> bob is 40 years old now.
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