An aquarium tank is 1/6 full of water. When 2 gallons of water are added, the tank becomes 1/2 full. What is the total capacity of the aquarium tank, in gallons?
6 gallons
Let's assign a variable for the total capacity: t
1/2t - 1/6t = 1/3t
1/3t = 2
2 * 3 = 6
So the total capacity of the tank is 6 gallons
