document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=71329>Question 71329</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3X+7Y=-6<BR>\n" );
document.write( "X-2Y=11  <BR>\n" );
document.write( "I AM LOOKING FOR HELP WITH SUBSTITUTION </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51050 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=51050\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X-2Y=11<BR>\n" );
document.write( "X=2Y+11 NOW SUBSTITUTE (2Y+11) FOR X IN THE OTHER EQUATION<BR>\n" );
document.write( "3(2Y+11)+7Y=-6<BR>\n" );
document.write( "6Y+33+7Y=-6<BR>\n" );
document.write( "13Y=-6-33<BR>\n" );
document.write( "13Y=-39<BR>\n" );
document.write( "Y=-39/13<BR>\n" );
document.write( "Y=-3 ANSWER<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "X-2*-3=11<BR>\n" );
document.write( "X+6=11<BR>\n" );
document.write( "X=11-6<BR>\n" );
document.write( "X=5 ANSWER<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "3*5+7*-3=-6<BR>\n" );
document.write( "15-21=-6<BR>\n" );
document.write( "-6=-6 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );