document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173664>Question 173664</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you solve by the addition-or-subtraction method?<BR>\n" );
document.write( "2x+y=18<BR>\n" );
document.write( "2x-y=22 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128517 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=128517\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> this is simply another name for process of elimination meaning your eliminating one of the variables...this equation is perfectly set up to eliminate the y terms because +y-y=0...we are left with 2x+2x=18+22<BR>\n" );
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document.write( "4x=40<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=10%29 ALIGN=MIDDLE  ALT=\"highlight%28x=10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "now take x's value and plug it back into either equation I will use the first equation<BR>\n" );
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document.write( "2(10)+y=18<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=-2%29 ALIGN=MIDDLE  ALT=\"highlight%28y=-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
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document.write( "sure enough a graph shows intersection at (10,-2)\r<BR>\n" );
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