To express: the given quantity in terms of the indicated variable.
The given quantity is “the sum of three consecutive integers”.
As n is the middle integer of the three terms.
According to question,n is the middle integer of the three terms.
Let the common difference of the consecutive integers is d.
Therefore, first term is .
And the third term will be .
Therefore,the sum of three consecutive integers is
Hence, the sum of three consecutive integers is .
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