subtract. 4a - 7ab + 3b + 12 from 12a - 9ab - 5b - 3
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Answer:
8a-2ab+2b-15
Step-by-step explanation:
+12a - 9ab - 5b - 3
+4a - 7ab + 3b + 12
(-) (+) (-) (-)
8a - 2ab + 2b - 15
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