document.write( "Question 914480: The numerator of a fraction is 7 less than the denominator. If 3 is added to the numerator and 9 is subtracted from the denominator the resulting fraction is equal to 3/2. Find the original fraction. \r
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document.write( "I tried the following, but am not finding the right answer:\r
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document.write( "\"Let x= denominator\"
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document.write( "\"Let x-7= numerator\"\r
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document.write( "(X-9)+(x-7)+9=3/2
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document.write( "2(x-9+x-7+9)= 3/2 (2/1)
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document.write( "2x-18+2x-14+18=3
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document.write( "4x-14=3
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document.write( "4x=17
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document.write( "X=17/4 \n" );
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Algebra.Com's Answer #555132 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! x-7/x \n" ); document.write( "(x-7+3)/(x-9)=3/2 \n" ); document.write( "(x-4)/(x-9)=3/2 \n" ); document.write( "2*(x-4)=3*(x-9) \n" ); document.write( "2x-8=3x-27 \n" ); document.write( "x=19 \n" ); document.write( "12/19 original fraction \n" ); document.write( "check \n" ); document.write( "12/19 \n" ); document.write( "15/10=3/2 \n" ); document.write( "ok \n" ); document.write( " |