Sara simplified an expression as shown.

image

What property of operations did Sara use to get from Step 3 to Step 4?

A.
Subtracting a number is the same as adding its inverse.

B.
Associative Property of Addition

C.
Commutative Property of Addition

D.
The opposite of a sum is the sum of its opposites.







Sara simplified an expression as shown.

image

What property of operations did Sara use to get from Step 3 to Step 4?

A.
Subtracting a number is the same as adding its inverse.

B.
Associative Property of Addition

C.
Commutative Property of Addition

D.
The opposite of a sum is the sum of its opposites.