SOLUTION: in the arithmetic sequence 1,5.9,13.....which term equals 153?

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Question 975462: in the arithmetic sequence 1,5.9,13.....which term equals 153?
Found 2 solutions by josgarithmetic, Boreal:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Term is 1%2B%28n-1%294 for any index n.

1%2B%28n-1%29%2A4=153
Solve for the index, n.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Every term increases 4, and the difference between the first term and the last is 152, or 38 terms after the first, so there are 39 terms.