n - 2 means a number _ by 2 what is the answer?

Question

what does n - 2 mean

Answer 1

The letter n represents a number, so n-2 means that number less 2 (n subtract by 2). So if n was 10 then n-2 would be 8. But we don’t have any way of knowing what number n represents unless we have an equation or we are given a value for n. Then we can do the arithmetic.