Given $\"\"$

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Apply distributive property : $\"\"$ .

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$\"\"$

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Subtract $\"\"$ from each side

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$\"\"$

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Group like terms

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$\"\"$

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Add 18 to each side

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$\"\"$

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Group like terms

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$\"\"$

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Subtract 26 from each side

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$\"\"$

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$\"\"$ .