A triangle has a perimeter of 48 feet the Exxon’s aid is 5 feet longer than the first side the third side is 3 feet longer than twice the fiat side

Exxon?

aid?
fiat?

ever check what you type? Anyway
side 1: x
Exxon aid: x+5
3rd side: 2x+3

Now add them up to get the perimeter. And, I assume, solve for x, then use that to get each side.