document.write( "Question 998551: -8z=4x
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document.write( "3x+z=2y
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document.write( "y-z=2x-1 solve the matrices \n" );
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Algebra.Com's Answer #616342 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! -8z=4x --> x = -2z \n" ); document.write( "3x+z=2y \n" ); document.write( "y-z=2x-1 \n" ); document.write( "------------- \n" ); document.write( "3x+z=2y \n" ); document.write( "Sub for x \n" ); document.write( "-- \n" ); document.write( "3(-2z) + z = 2y \n" ); document.write( "y = -5z/2 \n" ); document.write( "---------- \n" ); document.write( "y-z=2x-1 \n" ); document.write( "Sub for x and y \n" ); document.write( "-5z/2 - z = 2(2z) - 1 \n" ); document.write( "-7z/2 = 4z - 1 \n" ); document.write( "-15z/2 = -1 \n" ); document.write( "z = 2/15 ************* \n" ); document.write( "y = -1/3 ************* \n" ); document.write( "x = -4/15 \n" ); document.write( "====================\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |