document.write( "Question 1101719: 2v+w+2x-2y+z=10
\n" ); document.write( "V+2w+3x+3y-3z=-6
\n" ); document.write( "V-w-2x-2y+3z=8
\n" ); document.write( "2v-2w+x-3y+2z=15
\n" ); document.write( "3v+3w-x+y-z=1 \n" ); document.write( "
Algebra.Com's Answer #716311 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "2v +  w + 2x - 2y +  z = 10\r\n" );
document.write( " v + 2w + 3x + 3y - 3z = -6\r\n" );
document.write( " v -  w - 2x - 2y + 3z =  8\r\n" );
document.write( "2v - 2w +  x - 3y + 2z = 15\r\n" );
document.write( "3v + 3w -  x +  y -  z =  1\r\n" );
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document.write( "It's too much to ask of any student to solve this\r\n" );
document.write( "by hand and without technology.  So I'll do it using\r\n" );
document.write( "a TI-84.  If your teacher doesn't allow this, then he\r\n" );
document.write( "or she is unreasonable and should be fired.\r\n" );
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document.write( "Make the augmented matrix\r\n" );
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document.write( "Put that in your TI-84 by pressing 2ND x-1\r\n" );
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document.write( "Highlight EDIT\r\n" );
document.write( "Make it read 5 x6 and enter the 30 matrix numbers left to\r\n" );
document.write( "right, top to bottom\r\n" );
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document.write( "Press 2ND MODE\r\n" );
document.write( "Press CLEAR\r\n" );
document.write( "Press 2ND x-1\r\n" );
document.write( "Highlight MATH\r\n" );
document.write( "Scroll to highlight B:rref(\r\n" );
document.write( "Press ENTER\r\n" );
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document.write( "   Screen will read rref(\r\n" );
document.write( "Press 2ND x-1\r\n" );
document.write( "Press ENTER\r\n" );
document.write( "Press ) to close the parentheses\r\n" );
document.write( "   Screen will read rref([A])\r\n" );
document.write( "Press MATH ENTER ENTER\r\n" );
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document.write( "Screen reads\r\n" );
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document.write( "which means\r\n" );
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document.write( "v = 178/75\r\n" );
document.write( "w = -71/75\r\n" );
document.write( "x =  14/25\r\n" );
document.write( "y = -59/25\r\n" );
document.write( "z =   9/25 \r\n" );
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document.write( "I'll say again, if your teacher said to do that by hand and\r\n" );
document.write( "not use a calculator or technology, then he or she is totally\r\n" );
document.write( "unreasonable and should be fired.\r\n" );
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document.write( "Edwin
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