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

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The inequality $\"\"$ .

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Apply addition property of inequality: Add 1 to each side.

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$\"\"$

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$\"\"$ (Additive inverse property: $\"\"$ )

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$\"\"$ (Additive identity property: $\"\"$ )

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

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$\"\"$

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The solution set is $\"\"$ $\"\"$

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

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(Note: A circle means that this point is not included in the solution set.) $\"\"$

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Check:

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To check the solution, substitute a nummber less than 11 in $\"\"$ .

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$\"\"$ (Substitute n = 10)

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

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The solution set is $\"\"$ .