SOLUTION: I'm having such a hard time understanding this Algebra course. Can you please help me with this question? Suppose that the length of a rectangle is three cm longer than twice the w

Question 394796: I'm having such a hard time understanding this Algebra course. Can you please help me with this question? Suppose that the length of a rectangle is three cm longer than twice the width and that the perimeter of the rectangle is 90 cm. Set up an equation for the perimeter involving only W, the width of the rectangle.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Let

represent the width. Then the length is

. The perimeter is 2 times the length plus 2 times the width.

You will need to simplify and collect terms to finish the problem.

John

My calculator said it, I believe it, that settles it

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