I have worked this a few times and keep ending up with 45/7 for the answer. The book says -9 is the answer. Any help is appreciated!
When a certain number is added to the numerator and subtracted from the denominator of the fraction 3/8, the result is 6. What is the number?
I have tried the following :
3+x/8-x = 6
(8-x) 3+x/8-x = 6 (8-X)
3+X = 48-6x