document.write( "Question 412025: I am not understanding how to Solve the system of linear equation using matrices.\r
\n" ); document.write( "\n" ); document.write( "x+y=3
\n" ); document.write( "4y=12
\n" ); document.write( "7x+3y-4z=5\r
\n" ); document.write( "\n" ); document.write( " Can you guide me step by step in solving it? \n" ); document.write( "

Algebra.Com's Answer #289469 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( "x+y=3
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document.write( " 4y=12
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document.write( "7x+3y-4z=5 \r
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document.write( "D =  = -16\r
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document.write( "D[x]= = 0\r
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document.write( "D[y]=  = -48\r
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document.write( "D[z] = =  -16
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document.write( "  x = 0 and y = -48/-16 = 3 and z = -16/-16 = 1 \n" );
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