Question 313017
3x-7)/(x^2-9)  - (x-1)/ (x^2-9)
(3x-7)/(x+3)(x-3)  - (x-1)/(x+3)(x-3)
LCM =(x+3)(x-3)
3x-7 -x+1 / (x+30(x-3)
2x-6 / (x+30(x-3)
2(x-3)/(x+3)(x-3)
2/(x+3)