Respuesta :

Space

Answer:

-4n - 5

General Formulas and Concepts:

  • Combining like terms

Step-by-step explanation:

Step 1: Write expression

n + 4 - 9 - 5n

Step 2: Simplify

  1. Combine like terms (n):                              -4n + 4 - 9
  2. Combine like terms (constants:                 -4n - 5