Doug is going to the store to stock up on food for his dog. While in the store, Doug decides to buy a single bag of dog treats a
s well. If a large bag of dog food costs $57 and a bag of dog treats costs $9, how many large bags of dog food, x, did Doug buy if he spent $180 and all prices already include sales tax?
WELL if he only bought a single bag of treats we just need to subtract $9 from his total amount spent, then we can just worry about how many bags of dog food he bought.
180 - 9 = 171
If each bag of dog food costs $57 then we just divide it with the remaining total.
