document.write( "Question 572513: I need help with the following problem:\r
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document.write( "Solve by the subsitution method.\r
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document.write( "9x + 2y = -37
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document.write( "-3x + y = 19 \n" );
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Algebra.Com's Answer #368443 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -3 x + 1 y = 19 .............1 \n" ); document.write( "1 y = 19 3 x ---------2 \n" ); document.write( "/ 1 = \n" ); document.write( " y = 19 3 x \n" ); document.write( "Substitute y in (2) \n" ); document.write( "9 x + 2 ( 19 3 x ) = \n" ); document.write( "9 x + 38 + 6 x = -37 \n" ); document.write( "9 x 6 x = -75 \n" ); document.write( "15 x = -75 \n" ); document.write( "/ 15 \n" ); document.write( "x= -5 \n" ); document.write( "Plug the value of x in (1) \n" ); document.write( "9 x + 2 y = -37 \n" ); document.write( "9 * -5 + 2 y = -37 \n" ); document.write( "-45 + 2 y = -37 \n" ); document.write( "2 y = 8 \n" ); document.write( "/ 2 \n" ); document.write( "y= 4 \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |