# Nth-Term Rules

Find the nth-term expression for an arithmetic sequence by identifying the common difference and the zero-term, and use it to determine any term in the sequence or test whether a given number belongs to the sequence

Builds on: Solving Linear Equations (soft, https://ai.page/c/solving-linear-equations/en.md), Generating Sequences (hard, https://ai.page/c/generating-sequences/en.md)

Concept id: nth-term-rules. Subject: maths. Licence: CC BY-SA 4.0.

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