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

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The inequality is $\"\"$ .

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Apply addition property of inequality: Add 3 to each side.

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$\"\"$

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ (Add: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ ) $\"\"$

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Apply multiplication property of inequality: Multiply each side by 3.

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$\"\"$

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$\"\"$ (Cancel common terms)

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$\"\"$ (Multiply: $\"\"$ ) $\"\"$

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

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$\"\"$

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$\"\"$ (Cancel common terms)

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

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Graph the solution set on a number line. $\"number$

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Note: A dot means that this point is included in the solution set. $\"\"$

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Check:

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To check, substitute 15, a number greater than 15, in $\"\"$ .

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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

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

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The inequality solution is $\"\"$ .