document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455036>Question 455036</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This needs to be solved by the substitution method.<BR>\n" );
document.write( "4x + 4y = 0<BR>\n" );
document.write( "-8x + y = 72 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312503 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=312503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x+4y=0	.............1				<BR>\n" );
document.write( "y=72+8x	---------2				<BR>\n" );
document.write( "substitute y in (1)											<BR>\n" );
document.write( "4x+4(72+8x)=0<BR>\n" );
document.write( "4x+288+32x=0			<BR>\n" );
document.write( "4x+32x=0-288				<BR>\n" );
document.write( "36x=-288								<BR>\n" );
document.write( "/36										<BR>\n" );
document.write( "x=-8										<BR>\n" );
document.write( "Plug the value of x in (1)											<BR>\n" );
document.write( "4x+4y=0					<BR>\n" );
document.write( "4*-8+4y=0				<BR>\n" );
document.write( "-32+4y=0						<BR>\n" );
document.write( "4y=32								<BR>\n" );
document.write( "/4										<BR>\n" );
document.write( "y=8										<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );