document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=209019>Question 209019</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find 2A-B if <BR>\n" );
document.write( "A=<BR>\n" );
document.write( "[6  -3]<BR>\n" );
document.write( "[1  -2]\r<BR>\n" );
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document.write( "B=<BR>\n" );
document.write( "[-4  -1]<BR>\n" );
document.write( "[2    5]\r<BR>\n" );
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document.write( "Answers:<BR>\n" );
document.write( "a)<BR>\n" );
document.write( "[10  -2]<BR>\n" );
document.write( "[-1  -7]\r<BR>\n" );
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document.write( "b)<BR>\n" );
document.write( "[16  -5]<BR>\n" );
document.write( "[0   -9]\r<BR>\n" );
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document.write( "c)<BR>\n" );
document.write( "[20  -4]<BR>\n" );
document.write( "[-2 -14]\r<BR>\n" );
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document.write( "d)<BR>\n" );
document.write( "[8  -7]<BR>\n" );
document.write( "[4   1]<BR>\n" );
document.write( "   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158006 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=158006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A-B=2%28matrix%282%2C2%2C6%2C-3%2C1%2C-2%29%29-%28matrix%282%2C2%2C-4%2C-1%2C2%2C5%29%29=%0D%0A%0D%0A%28matrix%282%2C2%2C%222%2A6%22%2C%222%2A-3%22%2C%222%2A1%22%2C%222%2A-2%22%29%29-%28matrix%282%2C2%2C-4%2C-1%2C2%2C5%29%29=%0D%0A%0D%0A%28matrix%282%2C2%2C12%2C-6%2C2%2C-4%29%29-%28matrix%282%2C2%2C-4%2C-1%2C2%2C5%29%29=%28matrix%282%2C2%2C12-%28-4%29%2C-6-%28-1%29%2C2-2%2C-4-5%29%29=%28matrix%282%2C2%2C12%2B4%2C-6%2B1%2C0%2C-9%29%29=%28matrix%282%2C2%2C16%2C-5%2C0%2C-9%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><font size = 4><b>\r\n" );
document.write( "The correct choice is (B)\r\n" );
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document.write( "Edwin</PRE> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );