Solve this please I need help

Answer:
A, C
B, A
C, C
Step-by-step explanation:
A, take 33-9 then you get 24, divide 24 by 8 and get 3
B, re-wright X/3 to X over 3, then subtract 5 from 8, you're left with 3, now find what X has to equal to make 3, X=9
C, same concept as the last one