\"\"\"\"

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The expression is \"\".

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\"\"             (Distributive property: a(b + c) = ab + ac)

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\"\"                 (Multiply: \"\")

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\"\"                 (Commutative property: a + b = b + a)

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\"\"                         (Subtract: \"\")\"\"

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According to subtraction property of equality: if \"\", then \"\".\"\"    (Subtract  14v from each side)

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\"\"    (Commutative property: a + b = b + a)

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\"\"                                  (Subtract: \"\")

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\"\"                                               (Additive identity property: \"\")\"\"

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The solution of expression is true.