document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=892704>Question 892704</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a+2b+0c-3d=0,2a-b+c+7d=0,4a+3b+2c+2d=0 solve this by cramers rule </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #540722 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=540722\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+2b+0c-3d=0<BR>\n" );
document.write( "2a-b+c+7d=0<BR>\n" );
document.write( "4a+3b+2c+2d=0 \r<BR>\n" );
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document.write( "1,2,0,-3,0<BR>\n" );
document.write( "2,-1,1,7,0<BR>\n" );
document.write( "4,3,2,2,0\r<BR>\n" );
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document.write( "4 unknowns with only three equations.<BR>\n" );
document.write( "Sorry, can't be solved by Cramer's rule.<BR>\n" );
document.write( "b = -4a/3,   c = 5a/9,   d =-5a/9\r<BR>\n" );
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document.write( "a = 9n,   b = -12n,   c = 5n,   d = -5n\r<BR>\n" );
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document.write( "possible solutions<BR>\n" );
document.write( "a = 9 ,   b = -12 ,   c = 5 ,   d = -5 <BR>\n" );
document.write( "a = 18,   b = -24,   c = 10,   d = -10\r<BR>\n" );
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document.write( " </SPAN>\n" );
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