document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=178966>Question 178966</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help please with this graphing problem by solving each system by addition\r<BR>\n" );
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document.write( "x-2y=-1<BR>\n" );
document.write( "-x+5y=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #133907 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=133907\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-2y=-1.....eq 1<BR>\n" );
document.write( "-x+5y=9.....eq 2<BR>\n" );
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document.write( "what you doing here is adding all the terms from eq1 to all the terms in eq 2<BR>\n" );
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document.write( "we can only put together like terms so x-x=0...so the x term is eliminated<BR>\n" );
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document.write( "-2y+5y=3y<BR>\n" );
document.write( "-1+9=8<BR>\n" );
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document.write( "so we are left with 3y=8<BR>\n" );
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document.write( "3y=8<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=8%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28y=8%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >divided by 3 to isolate the variable y<BR>\n" );
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document.write( "now take y's found value and plug it back into either numbered equation<BR>\n" );
document.write( "I choose eq 1<BR>\n" );
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document.write( "x-2(8/3)=-1<BR>\n" );
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document.write( "x-16/3=-1<BR>\n" );
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document.write( "3x-16=-3.....multiplied all terms by 3<BR>\n" );
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document.write( "3x=13<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=13%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28x=13%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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