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Thread: Little help

  1. #1
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    Little help

    ..
    Attached Thumbnails Attached Thumbnails Little help-math.jpg  
    Last edited by andy054; Oct 27th 2010 at 08:32 AM.
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  2. #2
    MHF Contributor Unknown008's Avatar
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    Some input from you would be really nice
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  3. #3
    Junior Member RHandford's Avatar
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    Hi

    Here's one to get you started.

    2x-11=13
    add 11: 2x=24
    divide by 2: x=12

    Now you try the rest and tell us where you get stuck :-)
    Last edited by RHandford; Oct 27th 2010 at 08:25 AM.
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  4. #4
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    ii) x= 3/10

    iii) x=66

    iv) x=???
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  5. #5
    MHF Contributor Unknown008's Avatar
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    Right. For this one, one way of removing all the fractions is to multiply everything by the least common denominator.

    \dfrac{x}{4}- 1 = \dfrac23 + x

    Multiply by 12;


    3x- 12 = 8 + 12x

    Now, bring all the x on one side and the rest on the other side. Can you complete it now?
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  6. #6
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    I need to spend some time going over it all, but cheers.
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  7. #7
    Junior Member RHandford's Avatar
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    Please come back if you get stuck
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  8. #8
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    Quote Originally Posted by andy054 View Post
    ..
    Thread closed. Forum rule #8: http://www.mathhelpforum.com/math-he...ng-151418.html
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