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    lost_and_confused333's Avatar
    lost_and_confused333 Posts: 2, Reputation: 1
    New Member

    Aug 31, 2005, 08:10 PM
    basic equation help!!
    I have the answer on my paper but I can't figure out how to do the problem itself

    a c
    -(2x - 12)= -
    b d

    its 'a' over 'b' times 2x minus 12 equals 'c' over 'd'
    dimples's Avatar
    dimples Posts: 256, Reputation: 9
    Full Member

    Sep 1, 2005, 07:32 AM
    I think there is something wrong with your equation. Do check it first
    shanus's Avatar
    shanus Posts: 17, Reputation: 0
    New Member

    Sep 1, 2005, 07:02 PM
    I'm assuming you are trying to solve for x??

    (a/b)*(2x-12) = (c/d)
    multiply both sides by b
    a*(2x-12) = (cb/d)
    divide both sides by a
    2x - 12 = (cb/da)
    add 12 to both sides
    2x = (cb/da) + 12
    divide both sides by 2
    x = (cb/2da) + 6

    with these sorts of questions, you become better at them with practice and practice alone... they might be tedious, but any effort made in practicing will pay off in an exam :)
    lost_and_confused333's Avatar
    lost_and_confused333 Posts: 2, Reputation: 1
    New Member

    Sep 1, 2005, 08:15 PM
    Thanks.. that helped a lot :)

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