document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=981831>Question 981831</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a+b=13, b+c=14, c+a=15, find the value of c </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #602748 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=602748\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Try taking the difference of these two:\r<BR>\n" );
document.write( "\n" );
document.write( "a+b=13, b+c=14\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%2Bc-%28a%2Bb%29=14-13 ALIGN=MIDDLE  ALT=\"b%2Bc-%28a%2Bb%29=14-13\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%2Bc-a-b=1 ALIGN=MIDDLE  ALT=\"b%2Bc-a-b=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c-a=1 ALIGN=MIDDLE  ALT=\"c-a=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and see this equation only has variables c and a.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Combine processes to solve to include the other equation with only c and a,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%2Ba=15 ALIGN=MIDDLE  ALT=\"c%2Ba=15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "You have a simple system of<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28c-a=1%2Cc%2Ba=15%29 ALIGN=MIDDLE  ALT=\"system%28c-a=1%2Cc%2Ba=15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Finishing steps:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c-a%2Bc%2Ba=1%2B15 ALIGN=MIDDLE  ALT=\"c-a%2Bc%2Ba=1%2B15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2c=16 ALIGN=MIDDLE  ALT=\"2c=16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28c=8%29 ALIGN=MIDDLE  ALT=\"highlight%28c=8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );