document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1002469>Question 1002469</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3x+2y-8z=29<BR>\n" );
document.write( "9x-y+2z=23<BR>\n" );
document.write( "-x-2y+8z=-11 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #619448 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=619448\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3	x	+	2	y	+	-8	z	=	29			--------------				1<BR>\n" );
document.write( "9	x	+	-1	y		2	z	=	23			--------------				2<BR>\n" );
document.write( "-1	x	+	-2	y	+		8	z	-11			--------------				3<BR>\n" );
document.write( "																<BR>\n" );
document.write( "consider equation 1 &2				Eliminate	y											<BR>\n" );
document.write( "Multiply 1 by		1					-5									<BR>\n" );
document.write( "Multiply 2 by		2					4									<BR>\n" );
document.write( "we get																<BR>\n" );
document.write( "3	x		+	2	y	+	-8	z	=	29						<BR>\n" );
document.write( "18	x		+	-2	y	+	4	z	=	46						<BR>\n" );
document.write( "Add the two																<BR>\n" );
document.write( "21	x		+	0	y	+	-4	z	=	75	-------------				4	<BR>\n" );
document.write( "consider equation 2 & 3				Eliminate	y											<BR>\n" );
document.write( "Multiply 2 by				-2												<BR>\n" );
document.write( "Multiply 3 by				1												<BR>\n" );
document.write( "we get																<BR>\n" );
document.write( "-18	x	+	2	y	+	-4	z	=	-46							<BR>\n" );
document.write( "-1	x	+	-2	y	+	8	z	=	-11							<BR>\n" );
document.write( "Add the two																<BR>\n" );
document.write( "-19	x	+	0	y	+	4	z	=	-57	-------------5				5		<BR>\n" );
document.write( "Consider (4) & (5)			Eliminate	x												<BR>\n" );
document.write( "Multiply 4 by				19												<BR>\n" );
document.write( "Multiply (5) by				21												<BR>\n" );
document.write( "we get																<BR>\n" );
document.write( "399	x	+	-76	z	=	1425										<BR>\n" );
document.write( "-399	x	+	84	z	=	-1197										<BR>\n" );
document.write( "Add the two																<BR>\n" );
document.write( "0	x	+	8	z	=	228										<BR>\n" );
document.write( "/	8															<BR>\n" );
document.write( "z	=	28.50														<BR>\n" );
document.write( "																<BR>\n" );
document.write( "																<BR>\n" );
document.write( "																<BR>\n" );
document.write( "																<BR>\n" );
document.write( "																<BR>\n" );
document.write( "Plug the value of			z	in		(5)										<BR>\n" );
document.write( "-19	x	+	4	z	=	-57										<BR>\n" );
document.write( "-19	x	=	-171													<BR>\n" );
document.write( "x	=	9														<BR>\n" );
document.write( "plug value of x & z in					1											<BR>\n" );
document.write( "27	+	2	y	+	-228	=	29									<BR>\n" );
document.write( "2	y	=	29	+	-27	+	228									<BR>\n" );
document.write( "y	=	115														<BR>\n" );
document.write( "																<BR>\n" );
document.write( "x=	9.00	,y=	115.00	,z=	28.50											<BR>\n" );
document.write( "																<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );