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Math Help - Clarification on Inequality Answer, Please

  1. #1
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    Clarification on Inequality Answer, Please

    Hey guys!

    I just need some quick help here with this inequality answer: 8(2x-0,2) > 0,4+3-(-2x-0,1) (correct to 2 dec)

    8(2x-0,2) > 0,4+3-(-2x-0,1)
    16x -1.6 > 0,4-6x-0,3
    22x > 0,4+1,6-0,3
    22x> 1,7
    Now the textbook has the solution of: x > 0,08 (2 dec)

    I understand pretty much up until working out the final solution, how did they get 0,08?

    Any help would be appreciated! Thanks a lot!
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  2. #2
    Newbie Esteban's Avatar
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    Re: Clarification on Inequality Answer, Please

    Quote Originally Posted by Simimano View Post
    Hey guys!

    I just need some quick help here with this inequality answer: 8(2x-0,2) > 0,4+3-(-2x-0,1) (correct to 2 dec)

    8(2x-0,2) > 0,4+3-(-2x-0,1)
    16x -1.6 > 0,4-6x-0,3

    22x > 0,4+1,6-0,3
    22x> 1,7
    Now the textbook has the solution of: x > 0,08 (2 dec)

    I understand pretty much up until working out the final solution, how did they get 0,08?

    Any help would be appreciated! Thanks a lot!
    there's a mistake, you have distributed the 3 in the parenthesses, but there's a - waiting hehe
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  3. #3
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    Re: Clarification on Inequality Answer, Please

    I checked the textbook though and the steps are done exactly like I have done mine, So is the textbook wrong then?
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  4. #4
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    Re: Clarification on Inequality Answer, Please

    None is perfect maybe if you are 100% sure.
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