Final answer:
The missing step to solve the given equation is justified by either the Division Property or the Multiplication Property of equality. These properties allow you to maintain the equality of an equation when dividing or multiplying both sides by the same non-zero number.
Step-by-step explanation:
The property of equality that justifies the missing step(s) to solve the given equation is likely the Division Property or Multiplication Property. When you divide or multiply both sides of an equation by the same non-zero number, you maintain the equality. This is because the Division Property of Equality states that if you divide both sides of an equation by the same non-zero number, the two sides remain equal. Similarly, the Multiplication Property of Equality states that if you multiply both sides of an equation by the same number, the two sides remain equal. This means that any operation (multiplication or division) must be applied to each term enclosed in brackets to maintain the balance of the equation.
For example, if you have the equation x * 5 = y and want to isolate x, you would use the Division Property and divide both sides by 5, resulting in x = y/5. If you have the equation x/3 = y, you would use the Multiplication Property and multiply both sides by 3 to get x = y * 3.