90 students from three different classes, A, B, and C are going on a field trip. Class A has 32 students and Class B has 28 students. Write an equation to describe the situation.
To write an equation to describe the situation, we need to consider the total number of students from all three classes.
Let's assign a variable for the number of students in Class C.
Class A has 32 students, Class B has 28 students, and Class C has 'x' students.
To find the total number of students, we sum the number of students from each class:
32 (Class A) + 28 (Class B) + x (Class C) = Total number of students
Therefore, the equation to describe the situation is:
32 + 28 + x = Total number of students