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Math Help - Solving equations for x part 2

  1. #1
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    Sep 2009
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    Solving equations for x part 2

    I dont understand 5 exercises besides those two,

    I had done the second exercise yesterday with teh technique of the first one, it wasnt that I did it wrong but I wrote it wrong in my Homework, if you hadn't written it I wouldn't have noticed.

    Also there was a protest at the University so now I have 2 days to finish my homework.

    5 other exercises that I don't know how to do:


    a)solving for x:

    a-2[b-3(c-x)]=6

    b) I did an exercise and I got:

    0 x -2

    how do I write it in the <------------------------->

    and in the interval notation

    c)How do I find the two answers to:

    3-|2x+4| ≤ 1

    I have read and tried following what my book said and I can't get the answers that appear in the book.
    Last edited by mr fantastic; September 2nd 2009 at 01:53 PM. Reason: MOved from another thread
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