(FUVEST) As funções $\,f\,$ e $\,g\,$ são dadas por: $\left \{ \begin{array} {rcr} f(x)\,=\,{\large \frac{3}{5}}x - 1 \\ g(x)\,=\,{\large \frac{4}{3}}x + a \\ \end{array}\right.$ Sabe-se que $\;f(0)\,-\,g(0) = {\large \frac{1}{3}}\,$. O valor de $\;f(3)\,-\,3 \centerdot g({\large \frac{1}{5}})\;$ é:
