\"\"

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The equation is \"\".

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

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\"\"             (Multiply: \"\")

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\"\"             (Apply commutative property of addition: \"\")

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\"\"

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(Apply associative property of addition: \"\")

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\"\"

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

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

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\"\"

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Option A is right choice.

\