document.write( "Question 99945: I just don't understand this.\r
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document.write( "In the following system of linear equations, state how to combine the two equations to obtain one equation with only one variable. \r
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document.write( "2x - 7y = 6 \r
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document.write( "x + 3y = 2
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Algebra.Com's Answer #72770 by checkley71(8403) ![]() You can put this solution on YOUR website! X+3Y=2 OR X=2-3Y NOW REPLACE X IN THE OTHER EQUATION WITH(2-3Y) & SOLVE FOR Y. \n" ); document.write( "2(2-3Y)-7Y=6 \n" ); document.write( "4-6Y-7Y=6 \n" ); document.write( "-13Y=6-2 \n" ); document.write( "-13Y=4 \n" ); document.write( "Y=4/-13 \n" ); document.write( "Y=-4/13 ANSWER. \n" ); document.write( "X+3*-4/13=2 \n" ); document.write( "X-12/13=2 \n" ); document.write( "X=12/13+2 \n" ); document.write( "X=2 12/13 OR 38/13 ANSWER. \n" ); document.write( " |