Answer:
The equation 153.3-p=143.4 gives the length in hours, p, of a day on the planet, so to find p we can add 143.4 to both sides of the equation:
153.3 - p + 143.4 = 143.4 + 143.4
This simplifies to:
153.3 = 286.8
So, p = 153.3 hours.
A day on this planet is 153.3 hours long, so a storm that lasts a day on this planet would last 153.3 hours.