document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=854257>Question 854257</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve this system of equations using the determinant of a matrices. Not the inverse rule.<BR>\n" );
document.write( "2z-5w=-5, <BR>\n" );
document.write( "6w+7z=10 <BR>\n" );
document.write( "use a determinant matrix to solve the system of equations. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #514548 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=514548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2z-5w=-5, <BR>\n" );
document.write( " 6w+7z=10<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "5w - 2z = 5<BR>\n" );
document.write( "6w + 7z = 10<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "|5 -2 -5|<BR>\n" );
document.write( "|6 +7 -10|<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Det = 5*7 - 6*-2 = 47<BR>\n" );
document.write( "------<BR>\n" );
document.write( "w*Det:<BR>\n" );
document.write( "|-2 -5|<BR>\n" );
document.write( "|7-10|<BR>\n" );
document.write( "= 20 + 35 = 55<BR>\n" );
document.write( "w = 55/47<BR>\n" );
document.write( "==========================<BR>\n" );
document.write( "-z*Det:<BR>\n" );
document.write( "|5 -5|<BR>\n" );
document.write( "|6 -10|<BR>\n" );
document.write( "= -50 + 30 = -20<BR>\n" );
document.write( "z = 20/47\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );