3. If we subtract 4a - 7 ab + 3b + 12 from 12a - 11ab + 5b - 3, then the
answer is:
8a + 4ab + 2b + 15
8a - 4ab + 2b - 15
8a - 4ab - 2b - 15
8a - 4ab - 2b - 15
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8a - 4ab - 2b - 15 is the answer
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