The perimeter of a square is represented by 4x - 16. What is the length of a side of this square?

(x-4)

Step-by-step explanation:

Since a square has 4 equal sides, the perimeter of a square is 4 times one of the sides (which is equal to adding all the sides together). So:

Perimeter = 4 (a side) = 4x-16

a side = (4x-16) / 4 = (x-4)

x-4

Step-by-step explanation:

since all 4 sides are the same in a square

(4x-16) / 4 = x-4