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Let n be the middle number of three consecutive integers. write an expression for the sum of these integers.

User AKornich
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(n-1)+n+(n+1)
With n as the middle of 3 integers, n-1 is the integer just before n and n+1 is the integer just after n.
User Hannah
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The expression for the sum of the three integers is 3n.

If n is the middle number of three consecutive numbers, then the number before n is (n - 1) and the number after n is (n +1). By adding the three terms, we get an expression for its sum:
(n-1) + n + (n + 1). Simplifying the expression yields 3n. I hope this helps.

User Zubair Ahmed
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