document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=346413>Question 346413</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help solving a system of 4 equations with 4 unknowns (finding where they all intersect). (w,x,y,z)\r<BR>\n" );
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document.write( "w+2x+y-3z=10<BR>\n" );
document.write( "-w+x+2y+z=-2<BR>\n" );
document.write( "2w+3x+5y-2z+14<BR>\n" );
document.write( "-2w+2x+3y+2z=-4<BR>\n" );
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document.write( "I know how to solve a 3 by 3, but the extra equation is throwing me off.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #247712 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=247712\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The method is the same as solving a 3x3 system...<BR>\n" );
document.write( "Take any three pair of equations and eliminate the same one variable...<BR>\n" );
document.write( "Then you will have a 3x3 system... </SPAN>\n" );
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