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Consider the steps to simplify the expression. Which property is used to reach Step 3?



Expression: -4

3

7

+ 7 + (-3

4

7

)


Step 1: = -4

3

7

+ (-3

4

7

) + 7

Step 2: = -4 + (-

3

7

) + (-3) + (-

4

7

) + 7

Step 3: = -4 + (-

3

7

) + (-

4

7

) + (-3) + 7

Step 4: = -4 + (-1) + (-3) + 7

Step 5: = -8 + 7

Step 6: = -1

A) The associate property of addition.

B) The commutative property of addition.

C) The opposite of a sum is the sum of its opposites.

D) Subtracting a number is the same as adding its inverse.

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Answer:

Commutative Property of Addition

Step-by-step explanation:

Step 2: -4 + (-37) + (-3) + (-47) + 7

Step 3: -4 + (-37) + (-47) + (-3) + 7

Because the order was changed, it is the Commutative Property.