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Math Help - Expressing x in terms of other variables...

  1. #1
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    Expressing x in terms of other variables...

    I think i have the hang of these but I wanna check with you guys to make sure..so could you tell me if this is right?

    Express x in terms of other variables:

    5x - 4 = \frac{y}{2}

    5x(2) - 4(2) = \frac{y}{2}(2)

    10x - 8 = y

    10x = y + 8

    x = \frac{y + 8}{10}

    Also could I have help with the following:

    Make the letter in brackets the subject of the formula in each of the following:

    2x - \frac{y}{3} = \frac{1}{3}...(x)

    Is it just the same method as the first problem?
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  2. #2
    Super Member Quacky's Avatar
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    Windsor, South-East England
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    Re: Expressing x in terms of other variables...

    Great work so far! Start the second by multiplying both sides by 3.
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  3. #3
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    Re: Expressing x in terms of other variables...

    Thanks!
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