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

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The inequality is $\"\"$ .

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Apply multiplication property of inequality: Multiply each side by 7.

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$\"\"$

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$\"\"$

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$\"\"$ (Cancel common terms)

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

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$\"\"$ (Divide each side by 5)

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$\"\"$ (Cancel common terms)

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

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$\"\"$

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Graph the solution set on a number line

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$\"\"$

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Check:

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To check, substitute a number less than 18 in $\"\"$ .

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$\"\"$

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

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

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