SOLUTION: the first term of an arithmetic sequence (AS) is 7 and the common difference is 3 find the 20th term.

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Question 1038853: the first term of an arithmetic sequence (AS) is 7 and the common difference is 3 find the 20th term.
Answer by ikleyn(52788) About Me  (Show Source):
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the first term of an arithmetic sequence (AS) is 7 and the common difference is 3 find the 20th term.
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a%5B20%5D = 7 + 19*d.

This question is from the area of basic knowledge on arithmetic progressions.

See the lessons
    - Arithmetic progressions
    - The proofs of the formulas for arithmetic progressions
in this site.