Question

The area of a rectangle is 20. The length is 5, and the width is (x+1). What is the value of x? What is the width of the rectangle?

Answer 1

The area of a rectangle = length * width
                         20          =  5      *  (x+1)


solve for x:

20 = 5(x+1)
x+1 = 4
x=3


and the width = x+1 = 3+1 = 4