$\"\"$

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The expression is $\"\"$ .

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Write the expression as sum: $\"\"$

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Terms: $\"\"$

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Like terms: $\"\"$

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Coefficients: 3, 4

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Constant terms: 2, 6 $\"\"$

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Terms: $\"\"$

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Like terms: $\"\"$ and 2, 6

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Coefficients: 3, 4

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Constant terms: 2, 6