document.write( "Question 348226: Please help me solve this equation:
\n" ); document.write( "Express each of the following systems of equations in the standard multiplicative form $\"+AX=B+\"$ and in the augmented matrix form.
\n" ); document.write( "a) $\"+2w-x-y%2B2z=3+\"$ ,
\n" ); document.write( " $\"+w%2B2x-2y%2Bz=1+\"$ ,
\n" ); document.write( " $\"+w%2By-2z=0+\"$ ,
\n" ); document.write( " $\"+3w-x-2z=-2+\"$ \r
\n" ); document.write( "\n" ); document.write( "b) $\"+2a-b%2B2c%2Bd=-2+\"$ ,
\n" ); document.write( " $\"+-b-d=4+\"$ ,
\n" ); document.write( " $\"+a%2B2c=-3+\"$ ,
\n" ); document.write( " $\"+2b-4c=0+\"$ \n" ); document.write( "

Algebra.Com's Answer #249015 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
Please help me solve this equation:
\n" ); document.write( "Express each of the following systems of equations in the standard multiplicative form $\"+Ax=B+\"$ and in the augmented matrix form.
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document.write( "We'll find the augmented matrix first:\r\n" );
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document.write( "Put in all the 1 or -1 coefficients where the coefficient is \r\n" );
document.write( "understood.\r\n" );
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document.write( "Put in 0 coefficients for x in the third equation and for y in the\r\n" );
document.write( "4th equation.\r\n" );
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document.write( "Erase all the letters and replace the equal signs by a verticle bar\r\n" );
document.write( "and put parentheses around the whole thing:\r\n" );
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document.write( "That's the augmented matrix.\r\n" );
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document.write( "To find the AX=B equation\r\n" );
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document.write( "Matrix A is the 4x4 matrix of coefficients\r\n" );
document.write( "the numbers left of the bar in the augmented matrix:\r\n" );
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document.write( "The matrix X is the 4x1 matrix of letters,\r\n" );
document.write( "(unknowns or variables), in the same order\r\n" );
document.write( "they appear in the original system of \r\n" );
document.write( "equations:\r\n" );
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document.write( "The matrix B is the 4x1 matrix of numbers that\r\n" );
document.write( "appear on the right of the equal signs,  and\r\n" );
document.write( "right of the bar in the augmented matrix:\r\n" );
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document.write( "So the equation  is\r\n" );
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document.write( "  \r\n" );
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document.write( "You do the other one.  It's the same way.  Just follow the same\r\n" );
document.write( "steps as above.\r\n" );
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document.write( "Edwin

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