n-5 (n minus five) is the way to write it. We cannot know the answer because we don't know what n is. For example if n is 12, the answer is 7. If n is 9, the answer is 4.
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n-5
5*n + (n - 8) = 5n + n - 8 = 6n - 8
Represent the number by n. The equation is 5n - 1 = 3n +5, and the solution is n = 3.
3*(n - 5) = 2*n + 11
6 less than a number n is n-6 This is because "n" is the variable; the number. Since the problem is 6 less than a number, you would start with writing subtract 6, which is -6, and then put n before it, subtracting 6 from n, which gives you n-6. ----