In a survey of 111 pet owners, 12 said they own a dog, and 60 said they own a cat. 4 said they own both a dog and a cat. How many owned
neither a cat nor a dog?

Total number of people surveyed = 118

Number of people who own dogs = 78

Number of people who own cat = 44

Number of people who own both cats and dogs = 26

Number of people who only own dogs = 78 - 26 = 52

Number of people who own only cats = 44 - 26 = 18

Only dog owners + Only cat owners + Both + Neither = Total people surveyed

52 + 18 + 26 + Neither = 118

Neither = 22(answer)

the solution is 12x-6y