document.write( "Question 743574: use an augmented matrix to solve each system of equations\r
\n" ); document.write( "\n" ); document.write( "-x=-3
\n" ); document.write( "2x+6y=0
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Algebra.Com's Answer #452954 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
-x=-3
\n" ); document.write( "2x+6y=0
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\n" ); document.write( "-x = 0y = -3
\n" ); document.write( "2x + 6y = 0\r
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\n" ); document.write( "Do it like this one.
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\n" ); document.write( "use an augmented matrix to solve each system of equations\r
\n" ); document.write( "\n" ); document.write( "-x+y=9
\n" ); document.write( "-4x+y=6
\n" ); document.write( "-------------
\n" ); document.write( "|-1 +1 -9|
\n" ); document.write( "|-4 +1 -6|
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\n" ); document.write( "Det = -1 - (-4) = 3
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\n" ); document.write( "x*Det = -6 - (-9) = 3
\n" ); document.write( "x = 3/Det
\n" ); document.write( "x = 1
\n" ); document.write( "-----------
\n" ); document.write( "-y/Det = 6 - 36 = -30
\n" ); document.write( "y = 10
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