Respuesta :

Space

Answer:

-7b - 9k + 6

General Formulas and Concepts:

Alg I

  • Combining like terms

Step-by-step explanation:

Step 1: Define expression

-4b + (-9k) - 6 - 3b + 12

Step 2: Simplify

  1. Rewrite:                                   -4b - 9k - 6 - 3b + 12
  2. Combine like terms (b):          -7b - 9k - 6 + 12
  3. Combine like terms:               -7b - 9k + 6