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29 August, 02:01

Solve for x.

-x/2<-1

Enter the solution to the inequality in the box.

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Answers (2)
  1. 29 August, 03:06
    0
    Remark

    You have to be awfully careful with this inequality. If can cause you all kinds of grief.

    The easiest way to do this is to begin by dividing by - 1. What that does is turn the inequality

    from (-x/2) < - 1 to

    x / 2 > 1

    The rule is when you divide by a negative, that turns the or the other way around ie > to <. You could actually show that happening.

    Start with your given

    - (x / 2) < - 1 Add 1 to both sides.

    - (x / 2) + 1 < - 1 + 1 The 1 and - 1 cancel on the right.

    - (x/2) + 1 < 0 Add x/2 to both sides

    - (x/2) + x/2 + 1 < x/2 Add the like terms on the left.

    1 < x/2 Which is exactly what we predicted would happen

    Multiply by 2

    2*1 < (x/2) * 2

    2 < x
  2. 29 August, 04:52
    0
    I believe it is x>-2
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