document.write( "Question 148243: Solve the system of equation:\r
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document.write( "3x+2y=11
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document.write( "2x-2y=4\r
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document.write( "Solve the system:\r
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document.write( "2x-y+2z=11
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document.write( "3x-2y-z=12
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document.write( "x-3y-z=1 \n" );
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Algebra.Com's Answer #108649 by mangopeeler07(462)![]() ![]() ![]() You can put this solution on YOUR website! 3x+2y=11 \n" ); document.write( "2x-2y=4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add the equations together to eliminate the y's.\r \n" ); document.write( "\n" ); document.write( "5x=15.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide both sides by 5.\r \n" ); document.write( "\n" ); document.write( "x=3.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Plug 3 in for x in either of the original equations.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(3)-2y=4\r \n" ); document.write( "\n" ); document.write( "6-2y=4\r \n" ); document.write( "\n" ); document.write( "y=1.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So x=3 and y=1. \n" ); document.write( " |