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Math Help - Question on > or equal symbol

  1. #1
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    Question on > or equal symbol

    0.3x +2 < 1.1x-3

    0.3x -1.1x + 2 < -3-2

    -0.8x < -5
    x < 6.25

    First someone please tell me if I did this wrong.

    Second do I need to change my symbol due to the fact that I divided by a negative number?

    Making the answer X > 6.25

    Thank You
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  2. #2
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    Quote Originally Posted by OneidaFL View Post
    0.3x +2 < 1.1x-3

    0.3x -1.1x + 2 < -3-2

    -0.8x < -5
    x < 6.25

    First someone please tell me if I did this wrong.

    Second do I need to change my symbol due to the fact that I divided by a negative number?

    Making the answer X > 6.25

    Thank You
    Yes your answer should be X > 6.25 because you divided by a negative number (which is the same as saying that you multiplied by a negative number).

    There is an easy check. Plug x=0 into

    0.3x +2 < 1.1x-3

    and see whether or not it's true.
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