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Math Help - algebra:( i dont understand

  1. #1
    fran93
    Guest

    algebra:( i dont understand

    hi there! can i please get some assistance on if i'm doing this equation correctly. and if not could i be shown how to do it correctly, it would be a great help!! (the dashed line respresents a fraction)

    Question:
    2n - 3 = 3
    ------ ----
    2 4

    this is how i tried to solve it...

    2(2n - 3) = 3
    --------- --- x 2
    2 4


    2n - 3 = 6
    ---
    4


    2n - 3 + 3 = 6
    --- + 3
    4


    2n = 6 3
    --- + ---
    4 1


    2n = 6 12
    --- + ---
    4 4


    2n = 18
    ---
    4

    2n 18
    --- = --- / 2
    2 4


    n = 18
    ---
    8

    = 9
    ---
    4


    so i solved for "n" and i got 9/4, is this correct?
    thanksss.
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  2. #2
    Super Member
    Joined
    Oct 2007
    From
    London / Cambridge
    Posts
    591
    Hello Frank

    I am finding it really difficult to follow the notation you have used for you question.

    Now there is a very easy way to check your answer. plug n = 9/4 into the original equation and see if it works.

    Now can you please type up the first part of the question using LaTeX

    Just click on this \frac{a}{b} = \frac{c}{d} and edit it.
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