What does nine less than the product of a number and 4

4n - 9

Product of a number and 4 is 9 less than that number

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To find "nine less than the product of a number and 4," we need to multiply a number by 4 and then subtract 9 from the result. Let's define the number as "x."

The product of a number (x) and 4 can be written as 4x. Now, to find nine less than this product, we subtract 9 from 4x.

Therefore, the expression "nine less than the product of a number and 4" can be represented as 4x - 9.