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shusha [124]
3 years ago
9

Please help!! 10 point available:)

Mathematics
1 answer:
salantis [7]3 years ago
8 0

Answer:

1) - 2n + 14

2)- 5n + 30

Step-by-step explanation:

n = a + (n - 1) \times d \\  = 12 + (n - 1) \times  - 2 \\  = 12  - 2n + 2 \\  =  - 2n + 14

n = a + (n - 1) \times d \\  = 25 + (n - 1) \times  - 5 \\  = 25 - 5n + 5 \\  =  - 5n + 30

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