\"\"

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The equation is \"\".

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According to multiplication property of equality:

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For any number a, b and c, If a = b then ac = bc.

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\"\"                     (Multiply each side by 3)

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\"\"                             (Cancel common terms)

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

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\"\"

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According to division property of equality:

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For any number a, b and c, If a = b then \"\".

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\"\"                           (Divide each sides by 2)

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\"\"                               (Cancel common factors)

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b = 39                                 (Divide: \"\")\"\"

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Check:

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To check the solution, substitute b = 39 in original equation. 

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\"\"

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

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

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Compare the values, the equation is true.

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\"\"

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The value of b = 39.