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Mathematics 44 Online
OpenStudy (anonymous):

1. Indicate which property is illustrated in Step 1. Step 1 8x + 12 + 12x + 5 = (8x + 12) + (12x + 5) Step 2 = 8x + (12 + 12x) + 5 Step 3 = 8x + (12x + 12) + 5 Step 4 = (8x + 12x) + (12 + 5) Step 5 = (8 + 12)x + (12 + 5) Step 6 = 20x + 17 distributive associative arithmetic fact commutative

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