In the following exercises, assume that $\lim _{x \rightarrow 6} f(x)=4, \lim _{x \rightarrow 6} g(x)=9, \quad$ and $\lim _{x \rightarrow 6} h(x)=6 .$ Use these three facts and the limit laws to evaluate each limit.
$$\lim _{x \rightarrow 6}\left(f(x)+\frac{1}{3} g(x)\right)$$