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vfiekz [6]
3 years ago
15

Plz help me get the answer to these

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
8 0

Remove the brackets

-5a + 9b + 7a               combine -5a and 7a

7a - 5a + 9b

2a + 9b                        Answer

Don't go any further. There is nothing else to do. These are unlike terms and cannot be reduced or combined.

Colt1911 [192]3 years ago
4 0

Step-by-step explanation:

(-5a+9b)+7a\qquad\text{combine like terms}\\\\=(-5a+7a)+9b\\\\=2a+9b

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