Arectangle has an area of 72 square units. the width of the rectangle is 9 units. the length of the rectangleis 2x+4. what is the rectangle length

Area of a rectangle = length x width (a = l x w)given: area = 72 width (w) = 9length (l) = 2x + 472 = (2x + 4) × 9distribute the 9 72 = (9•2x + 9•4)72 = 18× + 36then subtract 36 on both sides 72 - 36 = 18x + 36 - 3636 = 18xdivide the 18 on both side 2 = × so the length of the rectangle is 2 units.

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