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Question
Subtract: 4a − 7ab + 3b + 12 from 12a − 9ab + 5b − 3
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Solution
The given expressions are in separate rows, with like terms one below the other, and then the subtraction of these expressions is as follows:
12a – 9ab + 5b – 3
4a – 7ab + 3b + 12
(–) (+) (–) (–)
_____________________
8a – 2ab + 2b – 15
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