How do I find the 25th term of the arithmetic sequence -39, -31, -23, -15,...

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asked Dec 27, 2017 147k views

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Christos Hayward · Answer 1 · 2017-12-31T19:01:10+0000

Every time you subtract 8 to get to the next number. So just multiply 8x25 to get 200 and then add 200 instead of subtract (because it's a negative number) to -15 and you get the 25th number, which is 185.

How do I find the 25th term of the arithmetic sequence -39, -31, -23, -15,...

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