**plug in the first equation into the y of the next.
3x + 1 = 5x - 3
-1 from both sides
3x = 5x -4
-5x from both sides
-2x = -4
divide both sides by negative 2
x= 2
I believe you are referring to exponents that have a multiple of three. If so any number * three is a valid exponent in your case.
:
The area.
She is trying to find how to cover it, which would be the area of the floor.
It is irrational because it does not repeat a pattern nor does it stop.
