document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1074888>Question 1074888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I use creamers rule with these 2 systems of equations? I meant for the \"{\" curly brackets to encompass both equations in each problem.\r<BR>\n" );
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document.write( "Solve using Cramer's rule.(Hint: Start by substituting m=1/x and n=1/y.)<BR>\n" );
document.write( "1. {4/x+1/y=1<BR>\n" );
document.write( "    {8/x+4/y=3\r<BR>\n" );
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document.write( "2. {4/x-2/y=1<BR>\n" );
document.write( "    {10/x+20/y=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #689575 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=689575\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Substituting leads to,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4u%2Bv=1 ALIGN=MIDDLE  ALT=\"4u%2Bv=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8u%2B4v=3 ALIGN=MIDDLE  ALT=\"8u%2B4v=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So then the coefficient matrix is,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=%28matrix%282%2C2%2C%0D%0A4%2C1%2C%0D%0A8%2C4%29%29 ALIGN=MIDDLE  ALT=\"A=%28matrix%282%2C2%2C%0D%0A4%2C1%2C%0D%0A8%2C4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=abs%28A%29=8 ALIGN=MIDDLE  ALT=\"abs%28A%29=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5Bu%5D=%28matrix%282%2C2%2C%0D%0A1%2C1%2C%0D%0A3%2C4%29%29 ALIGN=MIDDLE  ALT=\"A%5Bu%5D=%28matrix%282%2C2%2C%0D%0A1%2C1%2C%0D%0A3%2C4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=abs%28A%5Bu%5D%29=1 ALIGN=MIDDLE  ALT=\"abs%28A%5Bu%5D%29=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5Bv%5D=%28matrix%282%2C2%2C%0D%0A4%2C1%2C%0D%0A8%2C3%29%29 ALIGN=MIDDLE  ALT=\"A%5Bv%5D=%28matrix%282%2C2%2C%0D%0A4%2C1%2C%0D%0A8%2C3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=abs%28A%5Bv%5D%29=4 ALIGN=MIDDLE  ALT=\"abs%28A%5Bv%5D%29=4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
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document.write( "So then,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u=abs%28A%5Bu%5D%29%2Fabs%28A%29=1%2F8 ALIGN=MIDDLE  ALT=\"u=abs%28A%5Bu%5D%29%2Fabs%28A%29=1%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=abs%28A%5Bv%5D%29%2Fabs%28A%29=4%2F8=1%2F2 ALIGN=MIDDLE  ALT=\"v=abs%28A%5Bv%5D%29%2Fabs%28A%29=4%2F8=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So substituting back,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1%2Fu=8 ALIGN=MIDDLE  ALT=\"x=1%2Fu=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1%2Fv=2 ALIGN=MIDDLE  ALT=\"y=1%2Fv=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
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document.write( "Do the other one exactly the same way.<BR>\n" );
document.write( "I just realized I used u and v instead of m and n.  </SPAN>\n" );
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