Answer:
Given; Distributive Property; Addition Property of Equality; Division Property of Equality
Step-by-step explanation:
The first line is the equation we are originally given; this makes the reason for the statement "Given."
To get the statement on the second line, both x and 12 have been multiplied by -2. The property that allows us to do this is the distributive property.
To get the statement on the third line, we must cancel the -2x. We do this by adding; the property that allows us to do this is the addition property of equality.
To get the last statement, we must divide both sides by -4. The property that allows us to do this is the division property of equality.