Respuesta :

Answer:

  1. 18 - 2x = 4x (Given)
  2. 18 = 6x (Addtion property of equality)
  3. 3 = x (Division property of equality)

Step-by-step explanation:

Given - This is the start of the proof. Use this for the information given from the start.

Addition property of equality - Use this when adding terms on both sides of an equation.

Division property of equality - Use this when dividing terms on both sides of an equation.