document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159617>Question 159617</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm using Substitution. <BR>\n" );
document.write( "My problem asks me to solve each system of linear equations.<BR>\n" );
document.write( "I'm not understanding how to eliminate a variable. Now this problem has double x and y.\r<BR>\n" );
document.write( "\n" );
document.write( "y=-x-4<BR>\n" );
document.write( "y=x+2\r<BR>\n" );
document.write( "\n" );
document.write( "Please help!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117697 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=117697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=-x-4<BR>\n" );
document.write( "y=x+2 subtract.<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "0=-2x-6<BR>\n" );
document.write( "2x-6<BR>\n" );
document.write( "x=-6/2<BR>\n" );
document.write( "x=-3 answer.<BR>\n" );
document.write( "y=-(-3)-4<BR>\n" );
document.write( "y=3-4<BR>\n" );
document.write( "y=-1 answer.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "-1=-3+2<BR>\n" );
document.write( "-1=-1<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );