document.write( "Question 965798: solve for x,y and z
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document.write( "1. x+y-2z=5
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document.write( "2. x+z=4
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document.write( "3. y-z=6 \n" );
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Algebra.Com's Answer #590292 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! solve for x,y and z \n" ); document.write( "x+y-2z=5 \n" ); document.write( "x+z=4 --> x = 4-z \n" ); document.write( "y-z=6 --> y = z+6 \n" ); document.write( "----------- \n" ); document.write( "x+y-2z=5 \n" ); document.write( "sub for x & y \n" ); document.write( "4-z + z+6 - 2z = 5 \n" ); document.write( "-2z + 10 = 5 \n" ); document.write( "z = 5/2 \n" ); document.write( "----- \n" ); document.write( "x = 3/2 \n" ); document.write( "y = 17/2 \n" ); document.write( " \n" ); document.write( " |