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Pepsi [2]
3 years ago
10

8m - n + 3 ; n = 9 m=-9

Mathematics
2 answers:
Allisa [31]3 years ago
6 0

Answer:

-78

Step-by-step explanation:

serious [3.7K]3 years ago
4 0

8m - n + 3 \\ if \: n \:  =  \: 9 \: m =  \:  - 9

8( - 9) - 9 + 3

=  - 72 - 9 + 3

=  - 81 + 3

=  - 78

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