If a train leaves every 12 minutes, and another train leaves every 9 minutse, and bolth have alredy let one parale tracks, at what time will they leave at the same time agine

The answer is: They will leave at the same time again in 36 minutes

Given equation is 2/3x= 9 - 2 (-1/3x + 3)

By using distributing property.

Next step is to divide each terms by the common denominator 3 so that we can get rid of fraction form.

2x=27+2x-18

2x=9+2x

2x-2x=9+2x-2x Subtracting 2x from each sides.

0=9

From the above result we can see that x has vanish and there's no x in the equation and we are left with 0=9 which is not correct.

So, there is no solution.