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