If 1/2 the students go to the library and another 1/2 go to the computer lab. If 8 students are left in the class now how many students were in the class originally
So you're trying to find the total number of students,
There are 8 left, and they have been halved 2 times
8 x 2 = 16
16 x 2 = 32
Multiply by 2 because x2 is the opposite of x\(\frac{1}{2}\)
32 students total