\"\"

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The inequality is \"\".

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Check whether 4 is a solution of the inequality.

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To check, substitute \"\" in the inequality.

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\"\"                 (Write the inequality)

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\"\"          (Substitute \"\")

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

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

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

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\"\" is not a solution of the inequality.\"\"

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\"\" is not a solution of the inequality.