document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1116244>Question 1116244</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mary is 7 years older than her brother and her brother is 10 years younger than her cousin. The sum of the ages is 47. How ald are they?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #731125 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=731125\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> m, Mary<BR>\n" );
document.write( "b, Brother<BR>\n" );
document.write( "c, Cousin\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28m=b%2B7%2Cb=c-10%2Cm%2Bb%2Bc=47%29 ALIGN=MIDDLE  ALT=\"system%28m=b%2B7%2Cb=c-10%2Cm%2Bb%2Bc=47%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The first and second equations can be written in terms of b; and then these used to rewrite the last equation all in ONE variable.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28m=b%2B7%2Cc=b%2B10%29 ALIGN=MIDDLE  ALT=\"system%28m=b%2B7%2Cc=b%2B10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The age sum equation:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28b%2B7%29%2Bb%2B%28b%2B10%29=47 ALIGN=MIDDLE  ALT=\"%28b%2B7%29%2Bb%2B%28b%2B10%29=47\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve and use it to evaluate m and c. </SPAN>\n" );
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