document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=466753>Question 466753</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve using the Solve using the substitution method<BR>\n" );
document.write( "-x + 6y = 54\r<BR>\n" );
document.write( "\n" );
document.write( "3x + y = 9<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #320017 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=320017\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve using the Solve using the substitution method<BR>\n" );
document.write( "-x + 6y = 54<BR>\n" );
document.write( "3x + y = 9<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "3x + y = 9 --> y = 9 - 3x<BR>\n" );
document.write( "Sub for y in the 1st equation<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "-x + 6y = 54<BR>\n" );
document.write( "-x + 6(9-3x) = 54<BR>\n" );
document.write( "-x + 54 - 18x = 54<BR>\n" );
document.write( "-19x = 0<BR>\n" );
document.write( "x = 0<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "sub for x in either eqn<BR>\n" );
document.write( "y = 9\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );