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?
What is the total capacity of the aquarium tank, in gallons?
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\(\frac{x}{2}+2\ gallons=x\\ \color{blue}x=4\ gallons\)
The total capacity of the aquarium tank is 4 gallons.
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