Question

Perform the requested operation or operations. f(x) = x minus eight divided by seven.; g(x) = 7x + 8, find g(f(x)).

Answer 1

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 2

Answer:

g(f(x))=x

Step-by-step explanation:

f(x)=$\dfrac{x-8}{7}$

g(x)=7x+8

g(f(x))=$g(\dfrac{x-8}{7})$

        = $7\times \dfrac{x-8}{7}+8$

        =x-8+8

       = x

Hence, g(f(x))=x