Jay needs 19 quarts more paint for the outside of his barn than for the inside. If he uses 107 quarts in all, how many gallons of paint will be used to paint the inside of the barn?

Let's use q to represent the number of quarts needed.

you would have the following:

2q = 107-19

2q=88

q=44

44 is the number of quarts in a in the barn.

Now you have to divide that number by 4 to get gallons because there is 4 quarts in a gallon.

There are 11 gallons of paint.