SOLUTION: I am trying to solve by factoring, and I do not know if I am doing this correctly. Here is my work and answer: If f(x) = 20x and g(x) = x

SOLUTION: I am trying to solve by factoring, and I do not know if I am doing this correctly. Here is my work and answer: If f(x) = 20x and g(x) = x - 4, what is g(g(f(3))? f(3) = 20(3

Question 389763: I am trying to solve by factoring, and I do not know if I am doing this correctly. Here is my work and answer:
If f(x) = 20x and g(x) = x - 4, what is g(g(f(3))?
f(3) = 20(3)
g(60) = 60 - 4
g(56) = 56 - 4
= 52 [this is my answer, but I need someone to check the answer and walk me through the solution.]
Thanks in advance for any assistance.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If f(x) = 20x and g(x) = x - 4, what is g(g(f(3))?
-------
g(g(f(3))
---
= g(g(60))
---
= g(56)
-----
= 52
============
Cheers,
Stan H.
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