Results 1 to 5 of 5
Like Tree1Thanks
  • 1 Post By Soroban

Math Help - basic algebra

  1. #1
    Newbie
    Joined
    Sep 2012
    From
    India
    Posts
    21

    basic algebra

    x-p/x+p = p+q/p-q

    sorry about the...inaccuracy.please solve this I tried this like 10 times already and i always get 2(xq+p2) or something and I know its wrong. please help me
    thnx

    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1574
    Awards
    1

    Re: basic algebra

    Quote Originally Posted by NormalKid View Post
    [SIZE=6]x-p/x+p = p+q/p-q

    First of all, please use grouping symbols.

    Is the problem \frac{x-p}{x+p}=\frac{p+q}{p-q}~?

    The way you have posted it reads:
    x-\frac{x}{p}+p=p+\frac{q}{p}-q.

    Which is it?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2012
    From
    India
    Posts
    21

    Re: basic algebra

    the first one
    how do u do thaat?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Super Member

    Joined
    May 2006
    From
    Lexington, MA (USA)
    Posts
    11,689
    Thanks
    617

    Re: basic algebra

    Hello, NormalKid!

    What is the question?
    I'll take a guess . . .


    \text{Solve for }x\!:\;\frac{x-p}{x+p} \:=\:\frac{p+q}{p-q}

    Cross-multiply: . (x-p)(p-q) \:=\:(x+p)(p+q)

    .n. . . . . . . . {\color{red}\rlap{//}}px - qx - p^2 + {\color{green}\rlap{//}}pq \:=\:{\color{red}\rlap{//}}px + qx + p^2 + {\color{green}\rlap{//}}pq

    n . . . . . . . . . . . . . . . . . . 2qx \:=\:-2p^2

    . . . . . . . . . . . . . . . . . . . . . x \:=\:-\frac{p^2}{q}
    Thanks from NormalKid
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Sep 2012
    From
    India
    Posts
    21

    Re: basic algebra

    Quote Originally Posted by Soroban View Post
    Hello, NormalKid!

    What is the question?
    I'll take a guess . . .



    Cross-multiply: . x+p)(p+q)" alt="(x-p)(p-q) \:=\x+p)(p+q)" />

    .n. . . . . . . . {\color{red}\rlap{//}}px - qx - p^2 + {\color{green}\rlap{//}}pq \:=\:{\color{red}\rlap{//}}px + qx + p^2 + {\color{green}\rlap{//}}pq

    n . . . . . . . . . . . . . . . . . . 2qx \:=\:-2p^2

    . . . . . . . . . . . . . . . . . . . . . x \:=\:-\frac{p^2}{q}
    good guessing Soroban sir.
    so my guess was correct !
    THANK YOU EVERYBODY. SP.THANKS TO YOU SIR.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. basic algebra help!
    Posted in the Algebra Forum
    Replies: 4
    Last Post: January 5th 2010, 09:52 AM
  2. Basic Algebra?
    Posted in the Calculus Forum
    Replies: 3
    Last Post: May 6th 2009, 10:33 AM
  3. Basic algebra
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 16th 2006, 11:31 PM
  4. Basic algebra
    Posted in the Algebra Forum
    Replies: 10
    Last Post: August 2nd 2006, 05:17 PM
  5. basic algebra
    Posted in the Algebra Forum
    Replies: 3
    Last Post: October 12th 2005, 08:32 AM

Search Tags


/mathhelpforum @mathhelpforum