The school allocates student dormitories. If there are 8 people in each room, there are still 12 beds missing. If there are 9 people in each room, two rooms will be available. Find the number of rooms

The school allocates student dormitories. If there are 8 people in each room, there are still 12 beds missing. If there are 9 people in each room, two rooms will be available. Find the number of rooms and students! ! ! ! ! Hello:

Suppose a * * * has x rooms, then the total number of people is 8x+ 12.

(8x+ 12)/9=x-2

8x+ 12=9x- 18

x=30

8x+ 12=252

A * * * has 30 rooms and 252 students.

I hope it helps you!