$\"\"$

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The inequality is $\"\"$

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

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$\"\"$ (Subtract 15 from each side)

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$\"\"$ (Apply Addition inverse proparty: $\"\"$ )

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$\"\"$ (Apply Addition identity proparty: $\"\"$ )

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

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$\"\"$

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Apply division proparty of inequelity: If $\"\"$ then $\"\"$

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$\"\"$ (Divide each part by 4)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Divide: $\"\"$ )

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$\"\"$

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The solution set is $\"\"$ .