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May 28, 2015

Homework Help: Math - Arithmetic Sequences

Posted by Max on Saturday, January 14, 2012 at 3:35pm.

The sum of the 4th and the 14th term of an arithmetic sequence equals 22. The 9th term is 4 larger than the 4th term. Calculate the first term of the sequence.
I've been trying to solve this for like an hour but I just can't figure out how to do it! I'd really appreciate your help! Thanks!!

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