\"\"

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The statement is "The sum of \"\" and 10 is 15".

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The statement in an equation form is \"\".\"\"

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\"\"    (Subtract 10 from each side)

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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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The equation is \"\"\"\".

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The solution of the equation is 5.