Question

dada as funções f(x)=5x+1 e g (x)=6x-4,determine f-1(g(x))​

Answer 1

$y = 5x + 1 = > x = 5y + 1 = > - 5y = - x + 1 = > 5y = x - 1 = > y = \frac{x - 1}{5} \\ \\ {f}^{ - 1} (g(x)) = \frac{g(x) - 1}{5} = \frac{6x - 4 - 1}{5} = \frac{6x - 5}{5}$