WHO IS WHAT NOW??? ?

PLEASE READ CAREFULLY:
The numbers 1 through 9 are represented by nine different students in the equations (each student is a different number). Each student represents the same number throughout.
Your challenge: What is Cheezy's Number?

You only know one student's number, and that is Priscilla = 3.
Using that information, find out what is the number for each of the student in the equations.
​The number not used will be Cheezy's number.

Only your most recent answer will be accepted.
- 3 points for the correct answer.
- 3 bonus points if you can list all the equations correctly.

WINNERS: Sarina (3), Addie (6), Aliah (6), Efren (6), John (3), Marisol (6), William (2), Youyi (6)