document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=33915>Question 33915</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i need help with matrices and systems of equations.<BR>\n" );
document.write( "[2  -1  1]<BR>\n" );
document.write( "[1   2  6]<BR>\n" );
document.write( "[3  -1  2]<BR>\n" );
document.write( "____________<BR>\n" );
document.write( "[2  -1  -2]<BR>\n" );
document.write( "[1   2   3]<BR>\n" );
document.write( "[3   -1  -1]<BR>\n" );
document.write( "           represents the values of which variable in the solution of the equations below?   <BR>\n" );
document.write( "2x- y + z = -2<BR>\n" );
document.write( "x +2y + 6z = 3<BR>\n" );
document.write( "3x -y + 2z=-1\r<BR>\n" );
document.write( "\n" );
document.write( "a) x<BR>\n" );
document.write( "b) y<BR>\n" );
document.write( "c) z<BR>\n" );
document.write( "d) none of the variables </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #20313 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=20313\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> None of the variables.  You would be solving for Z if <BR>\n" );
document.write( "the numerator matrix and the denominator matrices were<BR>\n" );
document.write( "switched.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );