\"\"\"\"\"\"

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The expression is \"\".\"\" (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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\"\"                 (Divide: \"\")

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\"\"                               (Apply additive inverse property: \"\")

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

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Apply subtraction property of equality: Subtract r from each side.

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\"\"

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\"\"                             (Apply commutative property: a + b = b + a)

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\"\"                                 (Apply additive inverse property: \"\")

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

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

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Apply division property of equality: Divide each side by 2.

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\"\"

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\"\"                                           (Cancel common terms)

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

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The value of expression is \"\".