A pet store currently has a total of 45 cats and dogs. There are 7 more cats than dogs. How do you find the number of cats and dogs in the store?
In the store there are currently 19 dogs and 26 cats.
We are looking for the number of cats and dogs so let's call
Now we are told there are 7 more cats (
We are also told there is a total of 45 cats (
We can now substitute, from the first equation,
Now that we have