document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=289238>Question 289238</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Dear Professor,<BR>\n" );
document.write( "i would very much appreciate it if you could help me solve the following algebra problem.<BR>\n" );
document.write( "thanks<BR>\n" );
document.write( "solve the system of equations,using substitiution or eliminationor back-substitution etc.<BR>\n" );
document.write( "x+3y-z=13<BR>\n" );
document.write( "2x -5z=23<BR>\n" );
document.write( "4x-y-2z=4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209569 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=209569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = -12/17,   y = 50/17,   z = -83/17<BR>\n" );
document.write( "x+3y-z=13<BR>\n" );
document.write( "2x -5z=23<BR>\n" );
document.write( "4x-y-2z=4<BR>\n" );
document.write( "multiply the first by -2<BR>\n" );
document.write( "-2x-6y+2z=-26<BR>\n" );
document.write( "4x-y-2z=4\r<BR>\n" );
document.write( "\n" );
document.write( "add<BR>\n" );
document.write( "2x-7y=-22\r<BR>\n" );
document.write( "\n" );
document.write( "multiply #1 by 5<BR>\n" );
document.write( "5x+15y-5z=65<BR>\n" );
document.write( "2x    -5z=23<BR>\n" );
document.write( "subtract<BR>\n" );
document.write( "3x+15y=42<BR>\n" );
document.write( "divide by 3<BR>\n" );
document.write( "x+5y=14<BR>\n" );
document.write( "2x-7y=-22\r<BR>\n" );
document.write( "\n" );
document.write( "#1 by 2<BR>\n" );
document.write( "2x+10y=28<BR>\n" );
document.write( "2x-7y=-22<BR>\n" );
document.write( "subtract<BR>\n" );
document.write( "17y=50<BR>\n" );
document.write( "y=50/17\r<BR>\n" );
document.write( "\n" );
document.write( "2x-7y=-22<BR>\n" );
document.write( "2x-7*50/17=-22<BR>\n" );
document.write( "x-7*25/17=-11\r<BR>\n" );
document.write( "\n" );
document.write( "x=-12/17\r<BR>\n" );
document.write( "\n" );
document.write( "2x -5z=23<BR>\n" );
document.write( "2*(-12/17)-5z=23<BR>\n" );
document.write( "-24/17-5z=23*17/17<BR>\n" );
document.write( "z=-83/17\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );