The length of a rectangle is m more than double the width, and the area of the rectangle is 45 m Find the dimensions of the rectaangle

Answer 1

What Mark M. implies is that a numeric solution is not possible without a value for m.

If a formula for W (width) in terms of m is required, then you can write a quadratic equation with W as the variable and use the quadratic formula to give such a formula for W.