document.write( "Question 370212: Solve the system of equations if possible.\r
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document.write( "2x-3y-z=15
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document.write( "2x+3y+z=1
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document.write( "2x+3y-z=3 \n" );
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Algebra.Com's Answer #263880 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 2x-3y-z=15 \n" ); document.write( "2x+3y+z=1 \n" ); document.write( "2x+3y-z=3 \n" ); document.write( "------------- \n" ); document.write( "Use elimination \n" ); document.write( "2x-3y-z=15 \n" ); document.write( "2x+3y+z=1 \n" ); document.write( "---------- Add \n" ); document.write( "4x = 15 \n" ); document.write( "x = 4 \n" ); document.write( "------ \n" ); document.write( "2x-3y-z=15 \n" ); document.write( "2x+3y-z=3 \n" ); document.write( "----------- Add \n" ); document.write( "4x - 2z = 18 \n" ); document.write( "16 - 2z = 18 \n" ); document.write( "z = -1 \n" ); document.write( "-------- \n" ); document.write( "2x+3y+z=1 \n" ); document.write( "8 + 3y - 1 = 1 \n" ); document.write( "3y = -6 \n" ); document.write( "y = -2 \n" ); document.write( "------- \n" ); document.write( "Most are not this easy. \n" ); document.write( " \n" ); document.write( " |