To completely solve the equation, we have to add the complete sum of quarts together.
This is only possible if we convert the 1 and a half gallons of juice to quarts and add it to the rest.
There are 4 quarts in a gallon, so we have to multiply the number of gallons (1 1/2) by the amount of quarts in a gallon(4)
1.5*4=6
Now add it to the rest.
Since there are 2 bottles of juice holding 2 quarts, the total of the bottles is 4 quarts.
Now add the quarts from the gallon bottle.
4+6=10
He bought 10 quarts of juice.
Hope this helps!
