11n + 4
Work Step by Step
9n - [3n - (5n + 4)] = Use the distributive property: 9n - [3n - 5n - 4] = Use the distributive property again: 9n - 3n + 5n + 4 = Group similar terms. (9n - 3n + 5n) + 4 = 11n + 4
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