document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=870122>Question 870122</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x-2y+z=2<BR>\n" );
document.write( "2x-y-z=1\r<BR>\n" );
document.write( "\n" );
document.write( "how do you solve this kind of problem? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #524675 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=524675\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-2y+z=2<BR>\n" );
document.write( "2x-y-z=1 <BR>\n" );
document.write( "------<BR>\n" );
document.write( "You need a 3rd equation if you are going to solve for x,y and z.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Without a 3rd equation you can solve for one of the variables in <BR>\n" );
document.write( "terms of another::<BR>\n" );
document.write( "For example::<BR>\n" );
document.write( "z = -x+2y+2<BR>\n" );
document.write( "z = 2x -y-1<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Therefore:<BR>\n" );
document.write( "-x + 2y +2 = 2x -y -1<BR>\n" );
document.write( "3x = 3y + 3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = y + 1<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );