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Math Help - This is a Linear function

  1. #1
    Member Awsom Guy's Avatar
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    This is a Linear function

    3(5x-4)/7 = 6(4x+3)/5
    I sort of forgot how to do it.
    Any help is great.
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  2. #2
    MHF Contributor
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    Quote Originally Posted by Awsom Guy View Post
    3(5x-4)/7 = 6(4x+3)/5
    I sort of forgot how to do it.
    Any help is great.

    \frac{15x-12}{7}=\frac{24x+18}{5} , cross multiply

    75x-60=168x+126

    75x-168x=126+60 .. Can continue?
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  3. #3
    MHF Contributor

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    Do what? You titled the thread, "This is a Linear function", which it is NOT- it is a linear equation-but you haven't said what you want to do with it.

    Guessing that you want to solve the equation, I would suggest ,multiplying both sides by (5)(7)= 35 to get rid of those denominators. Doing that you should get 15(5x- 4)= 42(4x+ 3). Now multiply out each side: 75x- 60= 164x+ 123. Can you finish from there?
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