Respuesta :

Space

Answer:

-2s + 4

General Formulas and Concepts:

  • Combining like terms

Step-by-step explanation:

Step 1: Define expression

(s + 12) + (-3s - 8)

Step 2: Simplify

  1. Combine like terms (s):                    -2s + 12 - 8
  2. Combine like terms (constants):      -2s + 4

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