The algebraic expression when the number is subtracted from 4 will be 4 - x.
In this exercise, you're required to write an algebraic expression to represent the word problem (sentence). Also, the number would be denoted by the letter x and no need for further simplification of the algebraic expression.
It should be noted that the variable given is x.
When x is subtracted from 4. This will be:
= 4 - x
The number is 4 - x.
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