$\"\"$

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In a square, measure of each side same.

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So, $\"\"$ .

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$\"\"$ (Write the equation)

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$\"\"$ (Add 5x to each side)

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$

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$\"\"$ (Apply additive identity property: $\"\"$ )

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$\"\"$ (Divide each side by 9)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Divide: $\"\"$ ) $\"\"$

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Use $\"\"$ to find the perimeter of the square.

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Formula for perimeter of a square is 4a, where a is measure of a side.

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$\"\"$ .

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Use any one of the side measures to find the perimeter.

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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The perimeter of the square is 64 units. $\"\"$

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The perimeter of the square is 64 units.