suburbaN

oops lmao

I think this will help: https://web2.0calc.com/questions/there-are-100-students-in-south-high-school-south-high-school-offers-only-chinese-and-spanish-there-are-8-more-students-in-chinese-than-in

if you search the entire question up on google, you might be able to find that the question has been answered on this or other math forums before.

1. so, 16 people own cats, 8 people own dogs, and 3 people own both. 
2. that means the 3 people who own both that the 16+8 people who are counted for cats and dogs 
3. you simply add 16+8 =24, then subtract 2 to get 22.