Question

A tank holds 256 gallons but is leaking at a raye of 3 gallons per week.A second water tank holds 384 gallons but is leaking at a rate of 5 gallons per week.After how many weeks will the amount of water in the two tanks be the same?

Answer 1

Set the equations equal to each other because you need to find when they will be the same.

$256 - 3x = 384 - 5x$
Add 5x to each side and subtract 256 from each side to get the variable alone.

$2x = 128$
Divide by 2.

$x = 64$