Respuesta :

Space

Answer:

(f - g)(x) = 4x - 4

General Formulas and Concepts:

Pre-Algebra

  • Distributive Property

Algebra I

  • Combining Like Terms

Step-by-step explanation:

Step 1: Define

f(x) = 3x

g(x) = -x + 4

(f - g)(x) is f(x) - g(x)

Step 2: Find

  1. Substitute:                    (f - g)(x) = 3x - (-x + 4)
  2. Distribute -1:                 (f - g)(x) = 3x + x - 4
  3. Combine like terms:    (f - g)(x) = 4x - 4

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