Question

9 after 4 new students joined a class, the class had 32 students. which equation can be used to find ( n ), the number of students in the class before the 4 new students joined? a ( \frac{n}{4} = 32 ) b ( n - 4 = 32 ) c ( 4n = 32 ) d ( n + 4 = 32 )

Explanation:

Step1: Define initial student count

Let $n$ = number of students before new ones joined.

Step2: Set up the equation

Adding 4 students gives 32 total: $n + 4 = 32$

Step3: Match with options

The equation matches option D.

Answer:

D. $n + 4 = 32$