$\"\"$

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The inequality is $\"\"$ .

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Apply distributive property: $\"\"$ .

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$\"\"$

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Subtract 3u from each side.

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$\"\"$

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$\"\"$

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Add 40 to each side.

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$\"\"$

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$\"\"$

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Divide each side by 2.

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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 u into the original inequality, $\"\"$ : 35, a number less than 35, and greater than 35.

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

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

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

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

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The solution set is $\"\"$ .