### Home > A2C > Chapter 6 > Lesson 6.1.3 > Problem 6-47

6-47.

Using the same function machines as in the previous problem, what is *f*(*g*(3))? Be careful! The result is different from the last one because the *order* in which you use the machines has been switched! With *f*(*g*(3)), first you find *g*(3), then you substitute that answer into the machine named *f*. Homework Help ✎

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