The lenghth of a rectangle is 2 feet more thats its width what is rhe measurment of the width if the area of the rectangle is 48

6x + 8 = 140
6x = 132
x = 22
the width is 22 ft
Now find the length
Length = 2x + 4
Length = 2(22) + 4
Length = 44 + 4
Length =
48
the length is 48 ft
Check answers:
2(Length) + 2(Width) = Perimeter
2(48) + 2(22) = 140
96 + 44 =140
140 = 140 

If the length = x then width = x - 2   ( because length is 2 more than width)
so area = 48 = x(x-2)
x^2 - 2x = 48
x^2 - 2x - 48 = 0
(x - 8)(x + 6) = 0

so x = 8  ( because the length cant be negative)  

so length is 8 and width = 8-2 = 6 feet 

-   width = 6 feet