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Thread: Help find the value of x for these

  1. #1
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    Help find the value of x for these



    I need to show all work. :/
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  2. #2
    MHF Contributor

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    Re: Help find the value of x for these

    In every case, the two different x expressions are equal. Set them equal then solve the equation for x. For example, in #7, 7x+ 3= 10x- 9. Subtract 7x from both sides, 3= 3x- 9, then add 9 to both sides, 12= 3x, and finally divide both sides by 3 to get 4= x.
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