$\"\"$

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The inequality is $\"\"$ .

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Apply distributive property: $\"\"$ .

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$\"\"$

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Add 15 to each side.

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$\"\"$

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$\"\"$

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Add 6b to each side.

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$\"\"$

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$\"\"$

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Divide each side by 9.

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$\"\"$

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$\"\"$

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$\"\"$

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Check:

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To check, substitute three different values for b into the original inequality, $\"\"$ : \ \

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$\"\"$ , a number less than $\"\"$ , and greater than $\"\"$ .

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Let three values for b are $\"\"$ .

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If $\"\"$ then $\"\"$ (This is false)

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If $\"\"$ then $\"\"$ (This is true)

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If $\"\"$ then $\"\"$ (This is true) $\"\"$

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The solution set is $\"\"$ .