Results 1 to 6 of 6

Math Help - Rearrange the formula

  1. #1
    Newbie
    Joined
    Aug 2011
    Posts
    5

    Rearrange the formula

    So I've been trying for the last hour, to no avail.

    p = 2+j/J-3

    Rearrange the formula so j is the subject.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    May 2010
    Posts
    1,028
    Thanks
    28

    Re: Rearrange the formula

    p = 2+j/J-3
    The equation as your wrote it is ambiguous. Please rewrite in a non ambiguous way.

    eg, do you mean:

    p = \frac{2+j}{j-3}

    or

    p = \frac{2+j}{j} -3

    or...etc
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Aug 2011
    Posts
    5

    Re: Rearrange the formula

    p = \frac{2+j}{j-3}
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    Joined
    May 2010
    Posts
    1,028
    Thanks
    28

    Re: Rearrange the formula

    p=\frac{2+j}{j-3}

    (multiply by [j-3])

    (j-3)p={2+j}


    expand the brackets on the left, collect terms, and finish.

    Spoiler:

    (j-3)p={2+j}

    jp-3p={2+j}

    jp-j -3p=2

    j(p-1) -3p=2

    j(p-1) =2+3p

    j=\frac{2+3p}{(p-1)}


    EDIT: spoiler added
    Last edited by SpringFan25; October 5th 2011 at 12:54 PM.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Aug 2011
    Posts
    5

    Re: Rearrange the formula

    Thank you!
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor
    Joined
    May 2010
    Posts
    1,028
    Thanks
    28

    Re: Rearrange the formula

    no problem
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Rearrange formula
    Posted in the Algebra Forum
    Replies: 7
    Last Post: April 8th 2011, 07:43 PM
  2. Rearrange the formula.
    Posted in the Algebra Forum
    Replies: 2
    Last Post: September 1st 2010, 04:19 AM
  3. Rearrange formula
    Posted in the Algebra Forum
    Replies: 7
    Last Post: November 20th 2009, 06:16 AM
  4. Rearrange formula?
    Posted in the Algebra Forum
    Replies: 8
    Last Post: November 8th 2009, 05:57 PM
  5. Rearrange formula
    Posted in the Algebra Forum
    Replies: 2
    Last Post: May 6th 2009, 05:07 AM

Search Tags


/mathhelpforum @mathhelpforum