document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186643>Question 186643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in elmination how would i solve this:x+2y=-9<BR>\n" );
document.write( "                                     4x+2y=6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139895 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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/cgi-bin/show-face.mpl?user=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=139895\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  x+2y=-9<BR>\n" );
document.write( "4x+2y=6<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Multiply both sides of top equation by -1:<BR>\n" );
document.write( "-x-2y=9<BR>\n" );
document.write( "4x+2y=6<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Now, add the two equation together:<BR>\n" );
document.write( "-x-2y=9<BR>\n" );
document.write( "4x+2y=6<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "3x   =18<BR>\n" );
document.write( "x = 6 (solution for x)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Substitute the above back into the original top equation and solve for y:<BR>\n" );
document.write( " x+2y=-9<BR>\n" );
document.write( " 6+2y=-9<BR>\n" );
document.write( "   2y=-15<BR>\n" );
document.write( "    y=-15/2 (solution for y)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );