document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=886137>Question 886137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help solving each system. Thank you.<BR>\n" );
document.write( "2x-y-z=1<BR>\n" );
document.write( "x+2y+z=0<BR>\n" );
document.write( "3x-y-2x=-1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537434 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=537434\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2,-1,-1,1<BR>\n" );
document.write( "1,2,1,0<BR>\n" );
document.write( "3,-1,-2,-1\r<BR>\n" );
document.write( "\n" );
document.write( "divide row 1 by 2/1<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "1,2,1,0<BR>\n" );
document.write( "3,-1,-2,-1\r<BR>\n" );
document.write( "\n" );
document.write( "add  down (-1/1) *row 1 to row 2<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,5/2,3/2,-1/2<BR>\n" );
document.write( "3,-1,-2,-1\r<BR>\n" );
document.write( "\n" );
document.write( "add  down (-3/1) *row 1 to row 3<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,5/2,3/2,-1/2<BR>\n" );
document.write( "0,1/2,-1/2,-5/2\r<BR>\n" );
document.write( "\n" );
document.write( "divide row 2 by 5/2<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,1,6/10,-2/10<BR>\n" );
document.write( "0,1/2,-1/2,-5/2\r<BR>\n" );
document.write( "\n" );
document.write( "add  down (-1/2) *row 2 to row 3<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,1,3/5,-1/5<BR>\n" );
document.write( "0,0,-16/20,-48/20\r<BR>\n" );
document.write( "\n" );
document.write( "divide row 3 by -4/5<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,1,3/5,-1/5<BR>\n" );
document.write( "0,0,1,3\r<BR>\n" );
document.write( "\n" );
document.write( "We now have the value for the last variable.<BR>\n" );
document.write( "We will work our way up and get the other solutions.\r<BR>\n" );
document.write( "\n" );
document.write( "add up  (-3/5) *row 3 to row 2<BR>\n" );
document.write( "1,-1/2,-1/2,1/2<BR>\n" );
document.write( "0,1,0,-2<BR>\n" );
document.write( "0,0,1,3\r<BR>\n" );
document.write( "\n" );
document.write( "add up  (1/2) *row 3 to row 1<BR>\n" );
document.write( "1,-2/4,0,2<BR>\n" );
document.write( "0,1,0,-2<BR>\n" );
document.write( "0,0,1,3\r<BR>\n" );
document.write( "\n" );
document.write( "add up  (1/2) *row 2 to row 1<BR>\n" );
document.write( "1,0,0,1<BR>\n" );
document.write( "0,1,0,-2<BR>\n" );
document.write( "0,0,1,3\r<BR>\n" );
document.write( "\n" );
document.write( "final<BR>\n" );
document.write( "1,0,0,1<BR>\n" );
document.write( "0,1,0,-2<BR>\n" );
document.write( "0,0,1,3\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );