\"\"

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The expression is \"\".

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Simplify the expression.

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\"\" (Distributive property: \"\")

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

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                                        \"\"(Distributive property: \"\")

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                                        \"\"                   (Substitute: \"\" and \"\")

\

Therefore, the simplified expression is \"\".

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\"\"

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\"\".