$\"\"$

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The equation is $\"\"$

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$\"\"$ (Evaluate powers: $\"\"$ )

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

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$\"\"$ (Add: $\"\"$ )

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

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

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

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$\"\"$ (Additive identity property: $\"\"$ )

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$\"\"$ (Subtract r from each side)

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$\"\"$ (Commutative property: $\"\"$ )

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$\"\"$ $\"\"$ (Additive inverse property: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$ The value of expression is $\"\"$ .

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