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Math Help - Rewrite equations and formulas

  1. #1
    Newbie
    Joined
    Oct 2009
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    1

    Rewrite equations and formulas

    can you explain how to do this?
    ax+b=c solve for X

    theses are the steps:
    ax+b=c
    ax=c-b [[how do you get from here]]
    X=c-b/a [[to here, how does the a and x do that?]]

    The answer is:
    x=c-b/a (thats a fraction)

    thats an example in
    my text book but i dont understand how you get that answer
    can somebody please help?
    thankk youu(:
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  2. #2
    Junior Member
    Joined
    Oct 2009
    Posts
    45
    It should be

     <br />
x = (c - b) / a<br />

    If the book says x = c - (b/a) then it is wrong. Typo?

    Patrick
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  3. #3
    MHF Contributor
    Joined
    Mar 2007
    Posts
    1,240

    Talking

    Quote Originally Posted by XXasdfghjkl View Post
    i dont understand how you get that answer
    If you're not familiar with how to solve linear equations, you'll need to study that first, because you use those techniques for solving literal equations such as the one you've posted.

    To learn how to solve literal equations, try here.

    Once you've learned the basic terms and techniques, please attempt the exercise. The subtraction to move b to the other side of the "equals" sign is the first step. Then you divide through by the a to complete the solution.
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