Respuesta :

Space

Answer:

w = -4

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS

Algebra I

  • Equality Properties

Step-by-step explanation:

Step 1: Define equation

-5 - 3w = 7

Step 2: Solve for w

  1. Add 5 to both sides:                    -3w = 12
  2. Divide -3 on both sides:              w = -4

Step 3: Check

Plug in w to verify it's a solution.

  1. Substitute:                    -5 - 3(-4) = 7
  2. Multiply:                        -5 + 12 = 7
  3. Add:                               7 = 7

And we have our final answer!

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