The common difference is 3.
A mathematics development or arithmetic series is a series of numbers such that the difference among the consecutive phrases is regular.
A not common difference is the difference among consecutive numbers in an arithmetic collection. To discover it, simply subtract the first time period from the second term, the second from the 0.33, or so on.
Let the common difference be d.
5 = 2 + ( 2 - 1) d
5 = 2 + 1d
5 - 2 = 1d
3 = d
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