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Mathematics 18 Online
OpenStudy (anonymous):

Indicate which property is illustrated in Step 4. Step 1 10x + 5 + 5x + 10 = (10x + 5) + (5x + 10) Step 2 = 10x + (5 + 5x) + 10 Step 3 = 10x + (5x + 5) + 10 Step 4 = (10x + 5x) + (5 + 10) Step 5 = (10 + 5)x + (5 + 10) Step 6 = 15x + 15 A. distributive B. commutative C. arithmetic fact D. associative

OpenStudy (anonymous):

d

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