document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=144769>Question 144769</A>: <I><SPAN STYLE=\"word-break: break-all;\"> WHich of the following determinants correctly expresses one of the unknown in the solution of the given equation.<BR>\n" );
document.write( "x+y+z=6<BR>\n" );
document.write( "x-y+z=2<BR>\n" );
document.write( "x+y-z=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #105490 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=105490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1  1  1 6<BR>\n" );
document.write( "1 -1  1 2<BR>\n" );
document.write( "1  1 -1 0\r<BR>\n" );
document.write( "\n" );
document.write( "-R1+R3<BR>\n" );
document.write( "1  1  1  6<BR>\n" );
document.write( "1 -1  1  2<BR>\n" );
document.write( "0  0 -2 -6\r<BR>\n" );
document.write( "\n" );
document.write( "-R1+R2<BR>\n" );
document.write( "1  1  1  6<BR>\n" );
document.write( "0 -2  0 -4<BR>\n" );
document.write( "0  0 -2 -6\r<BR>\n" );
document.write( "\n" );
document.write( "-1/2 R2<BR>\n" );
document.write( "1  1  1  6<BR>\n" );
document.write( "0  1  0  2<BR>\n" );
document.write( "0  0 -2 -6\r<BR>\n" );
document.write( "\n" );
document.write( "-R2+R1<BR>\n" );
document.write( "1  0  1  4<BR>\n" );
document.write( "0  1  0  2<BR>\n" );
document.write( "0  0 -2 -6\r<BR>\n" );
document.write( "\n" );
document.write( "-1/2 R3<BR>\n" );
document.write( "1  0  1  4<BR>\n" );
document.write( "0  1  0  2<BR>\n" );
document.write( "0  0  1  3\r<BR>\n" );
document.write( "\n" );
document.write( "-R3+R1<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( "Giving solution set {1,2,3}. It is unclear what the question was asking, but this has been solved.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );