\"\"

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The expression is \"\".

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\"\"          (Apply distributive property: \"\")

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\"\"               (Multiply: \"\")

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\"\"                      (Product of two different signs is negative)

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

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

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

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The simplified expression is \"\".