Answer:
x = 5/6
Explanation:
From the question, we are told that the value of the perimeter equals the value of the area
mathematically, the area of a rectangle is the product of its side lengths
we have this as;
5 * 4x = 20x
The formula for the perimeter is;
P = 2(l + b)
P = 2(5 + 4x)
So we equate this to the area above
20x = 2(5 + 4x)
20x/2 = 5 + 4x
10x = 5 + 4x
10x - 4x = 5
6x = 5
x = 5/6