\"\"

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The expression is \"\".

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\"\"           (Rewrite: \"\")

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\"\"              (Apply Power of a power property: \"\")

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\"\"              (Apply formula: \"\")

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\"\"

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\"\"

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\"\"        (Multiply each side by 2)

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\"\"

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\"\"   (Subtract 2x from each side)

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\"\"

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\"\"                     (Divide each side by 2)

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\"\"

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\"\"

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The value of \"\".