document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312366>Question 312366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3x+2y-z=8<BR>\n" );
document.write( "-3x+4y+5z=-14<BR>\n" );
document.write( "x-3y+4z=-14 \r<BR>\n" );
document.write( "\n" );
document.write( "Can you help me solve that  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223330 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=223330\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Are matrix methods OK?<BR>\n" );
document.write( "I found the inverse of the coefficient matrix and multiplied it by the right hand side.<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "[A][x]=[b]<BR>\n" );
document.write( "[A]inv[A][x]=[A]inv[b]<BR>\n" );
document.write( "[x]=[A]inv[b]<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "where <BR>\n" );
document.write( "[A]=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C3%2C3%2C2%2C-1%2C-3%2C4%2C5%2C1%2C-3%2C4%29%29 ALIGN=MIDDLE  ALT=\"%28matrix%283%2C3%2C3%2C2%2C-1%2C-3%2C4%2C5%2C1%2C-3%2C4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "[x]=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29 ALIGN=MIDDLE  ALT=\"%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "[b]=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C1%2C8%2C-14%2C-14%29%29 ALIGN=MIDDLE  ALT=\"%28matrix%283%2C1%2C8%2C-14%2C-14%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "to get<BR>\n" );
document.write( "[x]=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C1%2C1%2C1%2C-3%29%29 ALIGN=MIDDLE  ALT=\"%28matrix%283%2C1%2C1%2C1%2C-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );