$\"\"$

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The equation is $\"\"$ .

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Combine like terms using distributive property: $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ $\"\"$

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Add $\"\"$ to each side.

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$\"\"$

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$\"\"$

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Subtract from each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Multiply each side by 2.

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$\"\"$

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$\"\"$ $\"\"$

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The value of $\"\"$ .