document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=256398>Question 256398</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with this:\r<BR>\n" );
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document.write( "Solve these equations by addition.\r<BR>\n" );
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document.write( "2x + y = -2<BR>\n" );
document.write( "x + y = 5\r<BR>\n" );
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document.write( "The lines intersect at(?,?).\r<BR>\n" );
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document.write( "it's not (3,-8) or (3,2).\r<BR>\n" );
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document.write( "thank you \r<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 #188509 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=188509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x + y = -2 multiply by -1 & add.<BR>\n" );
document.write( "x+y=5<BR>\n" );
document.write( "-2x-y=2<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "-x=7<BR>\n" );
document.write( "x=-7 ans.<BR>\n" );
document.write( "2*-7+y=-2<BR>\n" );
document.write( "-14+y=-2<BR>\n" );
document.write( "y=-2+14<BR>\n" );
document.write( "y=12 ans.<BR>\n" );
document.write( "(-7,12) is the intersection.  <BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "-7+12=5<BR>\n" );
document.write( "5=5<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-8%2C+5%2C+-10%2C+14%2C+-2x+-2%2C+-x+%2B5%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-8%2C+5%2C+-10%2C+14%2C+-2x+-2%2C+-x+%2B5%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -8 to 5, y from -10 to 14, of TWO functions -2x -2 and -x +5).  </SPAN>\n" );
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