Which properties of equality justify steps b and d?A. Multiplication Property of Equality; Subtraction Property of EqualityB. Subtraction Property of Equality; Division Property of EqualityC. Subtraction Property of Equality; Multiplication Property of EqualityD. Subtraction Property of Equality; Subtraction Property of Equality

C. Subtraction Property of Equality; Multiplication Property of Equality

For the first one, you are subtracting 7 from both sides (step b), to help isolate the y

since you are both subtracting, and "both sides" (meaning there is a equal sign) it is Subtraction Property of Equality.

For the second one, you are multiplying 2 from both sides (step d), to help isolate the y

since you are multiplying, and "both sides" (meaning there is a equal sign), it is Multiplication Property of Equality


hope this helps