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Mathematics 16 Online
OpenStudy (anonymous):

. Indicate which property is illustrated in Step 5. Step 1 11x + 12 + 7x + 5 = (11x + 12) + (7x + 5) Step 2 = 11x + (12 + 7x) + 5 Step 3 = 11x + (7x + 12) + 5 Step 4 = (11x + 7x) + (12 + 5) Step 5 = (11 + 7)x + (12 + 5) Step 6 = 18x + 17 associative distributive commutative arithmetic fact

OpenStudy (tkhunny):

I'd call it "substitution".

OpenStudy (anonymous):

distributive

OpenStudy (tkhunny):

From Step 4 Into Step 5 (Distributive) or Out of Step 5 into Step 6 (Substitition)?

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