30. Subtract 4a - 7ab + 3b + 12 from 12a-9ab + 5b - 6.
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30. Subtract 4a - 7ab + 3b + 12 from 12a-9ab + 5b - 6.
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12a-9ab+5b-6 - 4a+7ab-3b-12
8a-2ab+2b-18
Verified answer
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