answer me fast plzjldi
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Answered by
1
Answer:
12a-9ab+5b-(5a-7ab+4b)
12a-9ab+5b-5a+7ab-4b
7a-2ab+b.
Answered by
15
5a-7ab+4b
- 12a- 9ab+5b
+ + -
------------------------
17a + 2ab - b
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