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Math Help - Inequalities turning -x to x

  1. #1
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    Sep 2009
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    Inequalities turning -x to x

    13 ≤ -x ≤ 11

    to eliminate the (-) of x

    which do I do:

    a)-13 ≤ x ≤ -11

    or

    b)-13≥ x ≥ -11
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  2. #2
    Banned
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    May 2009
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    when you divide or multiply by a negative number through an inequality, the inequality signs all flip, so you should do b)
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