\"\"

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The inequality is \"\".

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Apply subtraction property of inequality: Subtract 20 from each side.

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\"\"

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Apply commutative property of addition: a + b = b + a.

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\"\"

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

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

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

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\"\"

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\"\"

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

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

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The inequality solution set is \"\".