The length of a rectangle is four less than twice its width. If x is the width of the rectangle, what is the perimeter of the rectangle?

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Accepted Answer

If x is the width of the rectangle, then 2x – 4 is the length of the rectangle. Since opposite sides of a rectangle are congruent, the perimeter of the rectangle is equal to 2x – 4 + x + 2x – 4 + x = 6x – 8.

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