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-   -   Transposing equations (https://www.askmehelpdesk.com/showthread.php?t=302367)

  • Jan 12, 2009, 01:37 AM
    tbyrn
    transposing equations
    I am having a hard time transposing this equation.
    P = 2Pi(F1 - F2)(r) n/60 find for n.
    So far I have P/2Pi=(F1-F2)(r)n/60

    My next step that I can think of is to multiply both sides by 60 so it woul look like
    (60)P/2Pi=(F1-F2)(r)(n).

    I don't just keep stacking the division up on the left hand side do I?
  • Jan 12, 2009, 03:11 AM
    Capuchin

    You're doing it right. You don't "stack up" the divisions, they just go on the bottom. Emember that dividing by r is the same as multiplying by 1/r, if that makes it easier.
  • Jan 12, 2009, 03:19 AM
    Capuchin

    Hint: You can do it in one step by multiplying bothe sides by 60/(2Pi(F1 - F2)(r))
  • Jan 12, 2009, 03:27 AM
    tbyrn
    Quote:

    Originally Posted by Capuchin View Post
    You're doing it right. You don't "stack up" the divisions, they just go on the bottom. emember that dividing by r is the same as multiplying by 1/r, if that makes it easier.

    So my answer would be n = P(60/2π(F1-F2)(r))
  • Jan 12, 2009, 03:30 AM
    Capuchin

    Yup :)

    It's nice and easy when everything is division or multiplication.

    It gets a bit trickier when the thing you need to transpose for is being added to or taken away from.
  • Mar 8, 2012, 10:08 AM
    arthur97
    In transposing whatever you do to one side you do to the other side. P= [2Pi(F1-F2)r] N / 60
    1] Multiply both sides by 60 / 60 P = [2Pi(F1-F2)r] N 60 /60 After cancelling/ 60 P = [2Pi(F1-F2)r]N
    2] Divide both sides by [2Pi(F1-F2)r] 60 P /[2Pi(F1-F2)r] = N
    3] Bring over to to the left hand side of the equation if you like.

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