SOLUTION: In an arithmetic sequence, the sixth term is twice the third term and the 30th term is 60. Find the common difference

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Question 982095: In an arithmetic sequence, the sixth term is twice the third term and the 30th term is 60. Find the common difference
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
General Term, a%5B1%5D%2B%28n-1%29d

system%28a%5B1%5D%2B5d=2%28a%5B1%5D%2B2d%29%2Ca%5B1%5D%2B29d=60%29

The unknown variables are a[1] and d.