\"\"

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The expression is \"\".

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Apply division property of equality: Divide each side by 12.

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\"\"

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\"\"                          (Cancel common terms)

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

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Check:

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The original equation is \"\", substitute \"\".

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\"\"

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

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The solution is true.\"\"

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The solution is \"\".