Indicate which property is illustrated in Step 3. Step 1 4x + 2 + 7x + 5 = (4x + 2) + (7x + 5)
Step 2 = 4x + (2 + 7x) + 5
Step 3 = 4x + (7x + 2) + 5
Step 4 = (4x + 7x) + (2 + 5)
Step 5 = (4 + 7)x + (2 + 5)
Step 6 = 11x + 7

A.
distributive
B.
commutative
C.
arithmetic fact
D.
associative

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