## Exam-Style Question on Sequences## A mathematics exam-style question with a worked solution that can be revealed gradually |

Question id: 425. This question is similar to one that appeared on a GCSE Higher paper in 2017. The use of a calculator is allowed.

The first five terms of an arithmetic sequence are:

$$-20, -17, -14, -11, -8$$Find an expression for the \(n^{th}\) term of the sequence.

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