document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=877290>Question 877290</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sandra is 36 years old. her son is 1 years old. how many years ago was sandra 3 times older than her son? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #529268 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=529268\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sandra is 36 years old. her son is 1 years old. how many years ago was sandra 3 times older than her son?<BR>\n" );
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document.write( "The difference is 35 years.<BR>\n" );
document.write( "3 times older = 4 times as old<BR>\n" );
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document.write( "m = mother's age<BR>\n" );
document.write( "s = son's age<BR>\n" );
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document.write( "m = s+35<BR>\n" );
document.write( "m = 4s<BR>\n" );
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document.write( "4s = s+35<BR>\n" );
document.write( "s = 35/3 years<BR>\n" );
document.write( "m = 140/3 years<BR>\n" );
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document.write( "Years ago = 36 - 140/3 = negative age<BR>\n" );
document.write( "No solution.<BR>\n" );
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