document.write( "Question 70130This question is from textbook
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document.write( ": please help me in this question: The denominator of a fraction is 1 less than twice the numerator. If 7 is added to both the numerator and denominator the resulting fraction has s value of 7/10. Find the original fraction. \n" );
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Algebra.Com's Answer #50005 by stanbon(75887) ![]() You can put this solution on YOUR website! The denominator of a fraction is 1 less than twice the numerator. If 7 is added to both the numerator and denominator the resulting fraction has s value of 7/10. Find the original fraction. \n" ); document.write( "------------- \n" ); document.write( "Let the numerator of the original fraction be \"x\" \n" ); document.write( "Then the denominator of the original fraction is \"2x-1\" \n" ); document.write( "---------- \n" ); document.write( "EQUATION: \n" ); document.write( "Add 7 to both numerator and denominator. \n" ); document.write( "Then [x+7]/[2x-1+7] = 7/10 \n" ); document.write( "7(2x+6) = 10(x+7) \n" ); document.write( "14x+42 = 10x+70 \n" ); document.write( "4x=28 \n" ); document.write( "x=7 (original numerator) \n" ); document.write( "2x-1= 13 (original denominator) \n" ); document.write( "---------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "( \n" ); document.write( " |