document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317984>Question 317984</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the values of x  and y that solve the following system of equations: \r<BR>\n" );
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document.write( " 3x - 4y = -17<BR>\n" );
document.write( " 4x - 7y = -21  <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227684 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=227684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  3x - 4y = -17<BR>\n" );
document.write( " 4x - 7y = -21<BR>\n" );
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document.write( "|3 -4|<BR>\n" );
document.write( "|4 -7|<BR>\n" );
document.write( "Det = -21 - (-16)<BR>\n" );
document.write( "Det = -5<BR>\n" );
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document.write( "|-4 -17|<BR>\n" );
document.write( "|-7 -21| = -x*Det<BR>\n" );
document.write( "= 84 - 119 = -35<BR>\n" );
document.write( "x = -7<BR>\n" );
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document.write( "-21 - 4y = -17<BR>\n" );
document.write( "y = -1<BR>\n" );
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