13 less than 4 times a number
13 less than is "-13"
4 times a number is "4x"
4x-13■
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What is the algebraic expression for 5 less than a certain number
15 less than 7 times a number is:15-7n
' N ' is the number. 5 less than it is (N - 5).
3n-9
4x - 5