The length of a rectangle is 1 yd less than double the width and the area of the rectangle is 21 yd^2, what are the dimensions of the rectangle

So if say the width is "w", double that is 2*w, or 2w 1 unit less than that is 2w - 1, check the picture below



since it cannot be a negative value, so... is not -3

what are the dimensions? well, length = 2w - 1, and  w = well is above :)

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