document.write( "Question 201409: Solve the inequality.\r
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document.write( "((3x)/(7-x)) > x
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Algebra.Com's Answer #151921 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! (3x) /(7-x) > x \n" ); document.write( "3x > x(7-x) \n" ); document.write( "3x> 7x -x^2 \n" ); document.write( "0> -x^2 +4x \n" ); document.write( "0> x(-x +4) \n" ); document.write( ". \n" ); document.write( "x<0,,,,x>4 \n" ); document.write( ". \n" ); document.write( "check ,,x<0,,use x=-1, -3/8 > -1,,,,,ok \n" ); document.write( ". \n" ); document.write( "0less than x less than 4,,use x= 1,,,3/6>1,,,,,,not true \n" ); document.write( ". \n" ); document.write( "x>4,,,use x=5,,,15/2 > 5,,,,,ok \n" ); document.write( ". \n" ); document.write( "therefore ,,,x<0,,,x>4 \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |