29-5
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let the no. be 'x' therefore, the expression of 5 less than a no. is, x-5
An algebraic expression for "6 less than 5 and a number" is (5 - x - 6), where x represents the unknown number.
The algebraic expression for "4 less than the sum of a number and 5" is (n + 5) - 4, where n represents the unknown number.
It is 3n - 5.
It is: x-5