document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=651049>Question 651049</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this system of equations <BR>\n" );
document.write( "2x-3y-z=4<BR>\n" );
document.write( "4x+y+z=15<BR>\n" );
document.write( "x-y-z=-2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #407553 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=407553\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please help me with this system of equations:<BR>\n" );
document.write( "-------------------- <BR>\n" );
document.write( "2x-3y-z=4<BR>\n" );
document.write( "4x+y+z=15<BR>\n" );
document.write( "x-y-z=-2<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Rearrange:<BR>\n" );
document.write( "x - y - z = -2<BR>\n" );
document.write( "2x-3y - z = 4<BR>\n" );
document.write( "4x+ y + z = 15<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Multiply 1st equation by 2 and subtract from 2nd equation<BR>\n" );
document.write( "Multiply 1st equation by 4 and subtract from 3rd equation<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "x - y - z = -2<BR>\n" );
document.write( "0 - y + z = 8<BR>\n" );
document.write( "0 + 5y +5z= 23<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Multiply 2nd equation by 5 and add to 3rd Equation<BR>\n" );
document.write( "x - y - z = -2<BR>\n" );
document.write( "0 - y + z = 8<BR>\n" );
document.write( "0 + 0 + 10z = 63<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "z = 6.3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Substitute and solve for \"y\":<BR>\n" );
document.write( "-y + 6.3 = 8<BR>\n" );
document.write( "y = -1.7<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Substitute and solve for \"x\":<BR>\n" );
document.write( "x -(-1.7) - (6.3) = -2<BR>\n" );
document.write( "x + 1.7 = 4.3<BR>\n" );
document.write( "x = 2.6<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );