Respuesta :

Space

Answer:

k = -0.4

General Formulas and Concepts:

Pre-Algebra

Equality Properties

  1. Multiplication Property of Equality
  2. Division Property of Equality
  3. Addition Property of Equality
  4. Subtraction Property of Equality

Algebra I

  • Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

2k + 9 = 7 - 3k

Step 2: Solve for k

  1. [Addition Property of Equality] Add 3k on both sides:                                  5k + 9 = 7
  2. [Subtraction Property of Equality] Subtract 9 on both sides:                        5k = -2
  3. [Division Property of Equality] Divide 5 on both sides:                                 k = -0.4

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