Cevap :

Adım adım açıklama:

[tex](fog)(x) = 5x+12\\\\(fog)(g^{-1}(x)) = 5g^{-1}(x)+12\\\\f(x) = 5g^{-1}(x)+12\\\\g^{-1}(x) = \frac{x-7}{3} \\\\f(x) = 5. \frac{x-7}{3}+12 =\frac{5x+1}{3}[/tex]