Respuesta :

Space

Answer:

B. -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

3r + 2 - r = -4

Step 2: Solve for r

  1. Combine like terms:                    2r + 2 = -4
  2. Subtract 2 on both sides:            2r = -6
  3. Divide 2 on both sides:               r = -3
B is the answer to the problem