Laplace transform of $\displaystyle\frac{e^{-2t}}{t-7}$

Question

How am I supposed to find the Laplace transform of $$\frac{e^{-2t}}{t-7}$$

I tried to use the fact that $$\mathcal{L}\{e^{ct}f(t)\}=F(s-c)$$ but I can't find a Laplace transform of $$f(t)=\frac{1}{t-7}$$