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What is the length of 7ft more than twice the width and an area of the rectangle is 99ft^2. Find the dimension?

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L = 7 + 2 w

L w = 99

(7+2w)w = 99

2 w^2 + 7 w - 99 = 0
(2w -11)(w+9) = 0
w = 11/2

L = 7 + 11 = 18

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