document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=914755>Question 914755</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve 2X plus 5Y equals 145 and X plus Y equals 50 matrix </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555282 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=555282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> STEP 1: \r<BR>\n" );
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document.write( "Find coefficient matrix (D), X matrix (Dx) and Y matrix (Dy). In this example we have.\r<BR>\n" );
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document.write( "D = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A2%2C5%2C%0D%0A1%2C1%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A2%2C5%2C%0D%0A1%2C1%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Dx=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A145%2C5%2C%0D%0A50%2C1%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A145%2C5%2C%0D%0A50%2C1%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Dy=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A2%2C145%2C%0D%0A1%2C50%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A2%2C145%2C%0D%0A1%2C50%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "STEP 2:\r<BR>\n" );
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document.write( " Find determinants for D, Dx and Dy.\r<BR>\n" );
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document.write( "det D= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A2%2C5%2C%0D%0A1%2C1%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A2%2C5%2C%0D%0A1%2C1%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A1-5%2A1=-3 ALIGN=MIDDLE  ALT=\"2%2A1-5%2A1=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "det Dx= =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A145%2C5%2C%0D%0A50%2C1%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A145%2C5%2C%0D%0A50%2C1%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=145%2A1-50%2A5=-105 ALIGN=MIDDLE  ALT=\"145%2A1-50%2A5=-105\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "det Dy= =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%282%2C2%2C%0D%0A2%2C145%2C%0D%0A1%2C50%29+%29 ALIGN=MIDDLE  ALT=\"%28matrix%282%2C2%2C%0D%0A2%2C145%2C%0D%0A1%2C50%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A50-1%2A145=-45 ALIGN=MIDDLE  ALT=\"2%2A50-1%2A145=-45\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "STEP 3: \r<BR>\n" );
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document.write( "Solve for the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=D%28x%29%2FD=-105%2F-3=highlight%2835%29 ALIGN=MIDDLE  ALT=\"x=D%28x%29%2FD=-105%2F-3=highlight%2835%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=D%28y%29%2FD=-45%2F-3=highlight%2815%29 ALIGN=MIDDLE  ALT=\"y=D%28y%29%2FD=-45%2F-3=highlight%2815%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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