document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181449>Question 181449</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by using the substitution method.\r<BR>\n" );
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document.write( "y=-3x-1<BR>\n" );
document.write( "2x-3y=-8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136072 by </B><A HREF=/tutors/aboutme.mpl?userid=HyperBrain><B>HyperBrain(694)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=HyperBrain><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=136072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We need to substitute y=-3x-1 to 2x-3y=-8.\r<BR>\n" );
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document.write( "2x-3(-3x-1)=-8<BR>\n" );
document.write( "2x-(-9x-3)=-8<BR>\n" );
document.write( "2x+9x+3=-8<BR>\n" );
document.write( "11x+3=-8<BR>\n" );
document.write( "11x=-11<BR>\n" );
document.write( "x=-1\r<BR>\n" );
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document.write( "But, y=-3x-1. So,<BR>\n" );
document.write( "y=-3(-1)-1=3-1=2\r<BR>\n" );
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document.write( "Therefore, x=-1 and y=2\r<BR>\n" );
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