For this case we have the following equation:

Resolving we have the following steps:
----> Given equation
----> Multiplication Property of equality: Multiply by 3 both sides of the equation
----> Distributive property: You solve the operation of the factor with the elements of parentheses
----> Property addition of equality: Because it adds 1 to both sides of equality.
----> Substraction Property of equality: Subtract 6x on both sides of equality
----> Division Property of equality: You divide both sides of the equality between -4.
Answer:
The second step is incorrect.