SOLUTION: If a number is added to the numerator of 7/9 and the same number is subtracted from the denominator, the result is 3. Find the number.

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Question 1016230: If a number is added to the numerator of
7/9 and the same number is subtracted from the denominator, the result is 3. Find the number.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call the number x...then we can write
%287+%2B+x%29%2F%289+-+x%29+=+3
Now cross-multiply and solve
7 + x = 27 - 3x
4x = 20
x = 5