The common difference of an arithmetic sequence is 4. The 13th term is 103. Find the general term of the arithmetic sequence.

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1. The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively.
a)Find the 1st term and the common difference of the arithmetic sequence.
b)Find the general term of the arithmetic sequence.

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posted by Charmian
2. been there, done that above

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posted by Damon

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