Respuesta :

calculista
f(x)=(x-8)/7
g(x) = 7x + 8
g(f(x))-------------- > 7*((x-8)/7)+8----------- >x-8+8=x
the answer is x

Answer:

g(f(x))=x

Step-by-step explanation:

f(x)=[tex]\dfrac{x-8}{7}[/tex]

g(x)=7x+8

g(f(x))=[tex]g(\dfrac{x-8}{7})[/tex]

        = [tex]7\times \dfrac{x-8}{7}+8[/tex]

        =x-8+8

       = x

Hence, g(f(x))=x