The local zoo has two water tanks for the elephant exhibit that are leaking One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank.

Question

mertsj · Answer

The question makes no sense because nothing in the problem says anything about water coming into the tank.  So how can x = the number of hours the tanks are filling?
I guess you didn't post the entire problem.