Xin uses 20 yards of fencing to build the walls of a square chicken coop. Which equation and solution represent x, the length, in yards, of each wall of the square coop?​

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Xin uses 20 yards of fencing to build the walls of a square chicken coop. Which equation and solution represent x, the length, in yards, of each wall of the square coop?​

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18 square inches

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