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Math Help - Express f(g) as a function of x

  1. #1
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    Express f(g) as a function of x

    Hi,

    I'm working from "The Chemistry Maths Book" 2nd ed. by Erich Steiner. I have no idea what I'm mean to do in this question:

    If f(x)=2x-1 and g(x)=3x+1, express f(g) as a function of x.

    Any help is greatly appreciated
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  2. #2
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    Quote Originally Posted by blackdragon190 View Post
    Hi,

    I'm working from "The Chemistry Maths Book" 2nd ed. by Erich Steiner. I have no idea what I'm mean to do in this question:

    If f(x)=2x-1 and g(x)=3x+1, express f(g) as a function of x.

    Any help is greatly appreciated
    f(g) = 2g -1. Now substitute g = 3x + 1.
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  3. #3
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    I got it, thanks for your help!
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