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Mathematics 15 Online
OpenStudy (anonymous):

The sum of the fifth and twice the third of an arithmetic sequence equals the twelfth term. If the seventh term is 25, find the expression for the general term, un.

OpenStudy (anonymous):

hey, how's it going?

OpenStudy (anonymous):

fine & you? i figured out the problem just did not know where to start. thank you though!

OpenStudy (anonymous):

ok cool

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