$\"\"$

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The expression is $\"\"$ .

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

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$\"\"$

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(Combine like terms using distributive property: $\"\"$ )

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$\"\"$

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

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$\"\"$ (Add: 6 + 2 = 8) $\"\"$

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The value of the expression is $\"\"$ .