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Arithmetic Sequences - Problem 14

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Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Notationally, number patterns can be very confusing. It is important to keep organized about which value is a term number versus which value is the term itself. Here, we are asked to find what is the term number for a given term itself. In order to do this, we need to solve for n in the explicit formula for an arithmetic sequence.

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