document.write( "Question 246542: zelma is eighteen years older than her son. she was three times as old as he was one year ago. how old are they now? \n" ); document.write( "
Algebra.Com's Answer #180001 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Loved those age problems since I first saw them
\n" ); document.write( "z=18+s
\n" ); document.write( "z-1=3(s-1)
\n" ); document.write( "substitute\r
\n" ); document.write( "\n" ); document.write( "18+s-1=3(s-1)
\n" ); document.write( "17-s=3s-3
\n" ); document.write( "20=2s
\n" ); document.write( "s=10
\n" ); document.write( "z=28
\n" ); document.write( "check
\n" ); document.write( "28-1=3*(10-1)
\n" ); document.write( "27=3*9
\n" ); document.write( "27=27
\n" ); document.write( "ok
\n" ); document.write( "
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