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OpenStudy (anonymous):
What is the sum of a 17-term arithmetic sequence where the first term is 7 and the last term is -105?
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OpenStudy (solomonzelman):
last term is -105, do you mean 17th term by last term?
OpenStudy (anonymous):
lmao i'm really bad at this could you please walk me through it
OpenStudy (solomonzelman):
|dw:1383690088511:dw|
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