document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=343846>Question 343846</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A mother is three times as old as her son. After 15 years she will be twice as old as her son. What is the present age in years of the mother? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #245967 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=245967\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M=3S ALIGN=MIDDLE  ALT=\"M=3S\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In 15 years, she'll be M+15 and he'll be S+15<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M%2B15=2%28S%2B15%29 ALIGN=MIDDLE  ALT=\"M%2B15=2%28S%2B15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M%2B15=2S%2B30 ALIGN=MIDDLE  ALT=\"M%2B15=2S%2B30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M=2S%2B15 ALIGN=MIDDLE  ALT=\"M=2S%2B15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute from the first equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3S=2S%2B15 ALIGN=MIDDLE  ALT=\"3S=2S%2B15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28S=15%29 ALIGN=MIDDLE  ALT=\"highlight%28S=15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >years old<BR>\n" );
document.write( "Then from the first equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M=3%2815%29 ALIGN=MIDDLE  ALT=\"M=3%2815%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28M=45%29 ALIGN=MIDDLE  ALT=\"highlight%28M=45%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > years old </SPAN>\n" );
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