Question 26390: What is the the length and width of a rectangle if the length is 4 centimeters longer than its width? Answer by askmemath(368) (Show Source):
You can put this solution on YOUR website! Let the width = X
Then the length = X+4.
For the information that you have posted this all that I can do. Perhaps you should put the rest of the question or did you just want to know how to start?