$\"\"$

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The inequality is $\"\"$ .

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Apply distributive property: $\"\"$ .

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$\"\"$

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$\"\"$

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Apply subtraction property of inequality: If $\"\"$ then $\"\"$ .

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Subtract 8a from each side.

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

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Apply commutative property of addition: $\"\"$ .

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$\"\"$

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$\"\"$

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Subtract 20 from each side.

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$\"\"$

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$\"\"$

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

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Apply division property of inequality: If $\"\"$ then $\"\"$ .

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Divide each side by 2.

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$\"\"$

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Cancel common terms.

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$\"\"$ . $\"\"$

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The inequality solution set is $\"\"$ .