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20 August, 17:26

You are building a rectangular dog pen with an area of 90 ft^2. you want the length of the pen to be 3 ft longer than twice its width. which equation can you use to find the width of the pen?

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  1. 20 August, 20:26
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    Set up equations.

    90=l*w

    l = 2w+3

    substitute the second equation into the area equation and solve for w
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