document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=85550>Question 85550</A>: <I><SPAN STYLE=\"word-break: break-all;\"> y=4x-9<BR>\n" );
document.write( "y=-x+6\r<BR>\n" );
document.write( "\n" );
document.write( "Solve a system by substitution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61790 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=61790\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Y=4X-9 NOW SUBSTITUTE(4X-9) FOR Y IN THE OTHER EQUATION & SOLVE FOR X.<BR>\n" );
document.write( "4X-9=-X+6<BR>\n" );
document.write( "4X+X=6+9<BR>\n" );
document.write( "5X=15<BR>\n" );
document.write( "X=15/5<BR>\n" );
document.write( "X=3 ANSWER.<BR>\n" );
document.write( "Y=4*3-9<BR>\n" );
document.write( "Y=12-9<BR>\n" );
document.write( "Y=3 ANSWER.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "3=-3+6<BR>\n" );
document.write( "3=3 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );