document.write( "Question 541812: What method did you use to solve this, so I can solve the next one.
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document.write( " 2y = x + 1
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document.write( " –2x – y = 7
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Algebra.Com's Answer #354295 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -1 x + 2 y = 1 .............1 \n" ); document.write( "-2 x -1 y = 7 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by 1 \n" ); document.write( "Multiply (2) by 2 \n" ); document.write( "-1 x 2 y = 1 \n" ); document.write( "-4 x + -2 y = 14 \n" ); document.write( "Add the two equations \n" ); document.write( "-5 x = 15 \n" ); document.write( "/ -5 \n" ); document.write( "x = -3 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "-1 x + 2 y = 1 \n" ); document.write( "3 + 2 y = 1 \n" ); document.write( " 2 y = 1 -3 \n" ); document.write( " 2 y = -2 \n" ); document.write( " y = -1 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |