\"\"\"\"

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The inequality is \"\"

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\"\"              (Commutative property: \"\")

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

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Apply subtraction property of inequality: Subtract 13 from each side.

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\"\"

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\"\" (Commutative property: \"\")

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

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

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

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Graph the solution set on a number line

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\"number

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Note: A dot means that this point is included in the solution set.\"\"

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Check:

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To check, substitute a number greater than or equal to 1 in inequality \"\".

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\"\"                (Substitute \"\")

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

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The inequality is true.                            \"\"

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The inequality solution is \"\".