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Math Help - solve for y help

  1. #16
    Senior Member pacman's Avatar
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    x = k - [(pq)^(1/2)]/y

    transpose x to the right and transpose [(pq)^(1/2)]/y to the left

    when you transpose, please change your sign to the opposite sign, that is (+ to -) and (- to +).

    [(pq)^(1/2)]/y = (k - x)

    cross-multiply, obviously y and (k - x) will change places

    [(pq)^(1/2)]/(k - x) = y

    or

    y = [(pq)^(1/2)]/(k - x)

    a latex print will be better to see, i'm too LAZY to learn latex
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  2. #17
    MHF Contributor

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    That's much better!

    x= K+ \frac{\sqrt{pq}}{y}
    Subtract K from both sides: x- K= \frac{\sqrt{pq}}{y}

    Multiply both sides by y: (x- K)y= \sqrt{pq}

    Divide both sides by x- K: y= \frac{\sqrt{pq}}{x- K}
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