Can you explain to me how i would solve this problem? can you explain/and show all the steps? also, is there anyway i can check my answer to see if it is correct? if so, explain to me? 22 = z + (-9)

need more information

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2