Answer:
[tex] {f}^{ - 1} (x) = \frac{y + 5}{7} \\ [/tex]
Step-by-step explanation:
[tex]y = f(x)[/tex]
[tex]y = 7x - 5 \\ y + 5 = 7x \\ \frac{7x}{7} = \frac{y + 5}{7} \\ x = \frac{y + 5}{7} [/tex]
