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Mathematics 20 Online
OpenStudy (anonymous):

Indicate which property is illustrated in Step 5. Step 1 7x + 5 + 9x + 11 = (7x + 5) + (9x + 11) Step 2 = 7x + (5 + 9x) + 11 Step 3 = 7x + (9x + 5) + 11 Step 4 = (7x + 9x) + (5 + 11) Step 5 = (7 + 9)x + (5 + 11) Step 6 = 16x + 16

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