document.write( "Question 455336: x-y-z=1
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document.write( "2x+y+2z=4
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document.write( "x+y+3z=5\r
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document.write( "solve for x,y,z \n" );
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Algebra.Com's Answer #312611 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! x-y-z=1 \n" ); document.write( "2x+y+2z=4 \n" ); document.write( "x+y+3z=5 \n" ); document.write( "----------- \n" ); document.write( "x-y-z=1 \n" ); document.write( "2x+y+2z=4 \n" ); document.write( "------------ Add \n" ); document.write( "3x + z = 5 Eqn A \n" ); document.write( "--------- \n" ); document.write( "x-y-z=1 \n" ); document.write( "x+y+3z=5 \n" ); document.write( "--------- Add \n" ); document.write( "2x + 2z = 6 \n" ); document.write( "x + z = 3 \n" ); document.write( "3x+ z = 5 Eqn A \n" ); document.write( "--------- Subtract \n" ); document.write( "-2x = -2 \n" ); document.write( "x = 1 \n" ); document.write( "------- \n" ); document.write( "x + z = 3 \n" ); document.write( "z = 2 \n" ); document.write( "------- \n" ); document.write( "x-y-z=1 \n" ); document.write( "1-y-2 = 1 \n" ); document.write( "y = -2 \n" ); document.write( "(1,-2,2) \n" ); document.write( " |