\"\"

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The expression is \"\".

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Apply addition property of equality: Add 5y from each side.

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\"\"

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

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

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

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

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\"\"                  (Subtract 14 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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\"\"                                     (Divide each side by 7)

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\"\"                                          (Cancel common terms)

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\"\"                                                (Divide: \"\")\"\"

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Check:

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To check the solution, substitute \"\" in original equation.

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\"\"

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\"\"                               (Multiply: \"\")

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

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

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The statement is true.\"\"

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The solution is \"\".