The width of a rectangle is the length minus 2 units. The area of the rectangle is 35 units. What is the width, in units, of the rectangle?

let length = x units

width = x-2 units

x(x-2) = 35

=> x^2 - 2x -35 =0

=> (x-7)(x+5) = 0

=> x=7

length = 7 units

width = 5 units