Let f: R -{3} to R-{1} be defined by f(x...

Let `f: R -{3} to R-{1}` be defined by f(x) `=(x-2)/(x-3)`
Let `g: R to R` be given as g(x)=2x-3. Then, the sum of all the values of x for which `f^(-1) (x)+g^(-1) (x)=(13)/2` is equal to

A

2

B

7

C

3

D

5

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