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-   -   Need help solving compound linear inequality (https://www.askmehelpdesk.com/showthread.php?t=2872)

  • Oct 27, 2003, 09:34 AM
    Nb3fan
    need help solving compound linear inequality
    Help!
    the problem is

    2-8(3x-1) less than/equal to 4+6x-2 (4-x)

    I came up with x greater than/equal to -7/8.

    Is this right?? Thank you!
  • Oct 28, 2003, 02:56 AM
    elina
    Re: need help solving compound linear inequality
    nb3fan, hi, are you sure the answer is -7/8?. well, I got a different answer... I got +7/16

    Ok, here is what I did... the steps are:

    Problem:
     
    2  - 8(3x-1) =< 4 + 6x -2(4-x)
    --------------------------------------------------

    The Steps:

    2 -24x + 8 =< 4 + 6x -8 + 2x

    -24x + 10 =< -4 + 8x

            -32x =< -14

                 x =< -14/-32

                 x =< 14/32
               
                 x =< 7/16

    Order of operation for this problem is "distributive property for multiplying each term in the bracket" goes 1st, then + and - last

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