write an expression.there were22 students in the clsass but some were absent
22 - X.
22 - x
To write an expression for this scenario, we can use variables to represent the number of students present and the number of absent students.
Let's say "x" represents the number of students present, and "y" represents the number of students absent.
The expression can be written as:
x + y = 22
This equation represents the total number of students in the class, where "x" represents the students present and "y" represents the students absent. The sum of these two quantities should be equal to the total number of students, which is 22 in this case.