The answer is : x= -y/3+2
Answer:
total - given, 360 -139 = 221
Let x=balloon swords
let x+4=balloon dogs (four more than x is x+4)
let x+7=balloon hats (three more than x+4 is x+7)
the answer is x+7
I don't know how to correctly explain the second answer (although I do know that it is 1)