document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1023386>Question 1023386</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student is solving the system of equations below. In which line is a mistake first made?\r<BR>\n" );
document.write( "\n" );
document.write( "2x + y -­ 2z = 23 <BR>\n" );
document.write( "3x + 2y + z = 11 <BR>\n" );
document.write( "x -­ y + z = ­-2\r<BR>\n" );
document.write( "\n" );
document.write( "Line 1  z = 11 + 3x + 2y <BR>\n" );
document.write( "Line 2  2x + y ­- 2(11 + 3x + 2y) = 23 <BR>\n" );
document.write( "Line 3  ­-4x ­- 3y = 45 <BR>\n" );
document.write( "Line 4  x -­ y + (11 + 3x + 2y) = ­- 2 <BR>\n" );
document.write( "Line 5  4x + y = - ­13 <BR>\n" );
document.write( "Line 6  ­-2y = 32 <BR>\n" );
document.write( "Line 7  y = ­16, x = ¾, z = ­-11/4<BR>\n" );
document.write( "--------------\r<BR>\n" );
document.write( "\n" );
document.write( "A) Line 1<BR>\n" );
document.write( "B) Line 3<BR>\n" );
document.write( "C) Line 5<BR>\n" );
document.write( "D) Line 6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #638865 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52794)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=638865\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "First mistake is in Line 1.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );