Results 1 to 6 of 6

Math Help - Substitution and Simplification

  1. #1
    Newbie
    Joined
    Sep 2011
    Posts
    9

    Substitution and Simplification

    expression

    Thank You. This is what I got

    M=-2 P=4

    3P-M
    3MP

    3*4-2
    3*-2*4

    = 10
    -24

    = -5
    12


    the answer is suppsed to be -7/12 ???

    anyone?
    Last edited by whereitsbeen; September 22nd 2011 at 06:15 PM. Reason: incorrect
    Follow Math Help Forum on Facebook and Google+

  2. #2
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2

    Re: Substitution and Simplification

    Can you show the work you've done in plugging the numbers in? Incidentally, math is case-sensitive. m is not equal to M.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2011
    Posts
    9

    Re: Substitution and Simplification

    done

    Quote Originally Posted by Ackbeet View Post
    Can you show the work you've done in plugging the numbers in? Incidentally, math is case-sensitive. m is not equal to M.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2

    Re: Substitution and Simplification

    OK, that's a good correction. But you still haven't posted your work yet.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Sep 2011
    Posts
    9

    Re: Substitution and Simplification

    expression

    Thank You. This is what I got

    M=-2 P=4

    3P-M
    3MP

    3*4-2
    3*-2*4

    = 10
    -24

    = -5
    12


    the answer is suppsed to be -7/12 ???
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,880
    Thanks
    668

    Re: Substitution and Simplification

    Quote Originally Posted by whereitsbeen View Post
    expression

    Thank You. This is what I got

    M=-2 P=4

    3P-M
    3MP

    3*4-2 ... here ... should be 3*4 - (-2)
    3*-2*4

    = 14
    -24

    = -7
    12

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

Similar Math Help Forum Discussions

  1. simplification help
    Posted in the Algebra Forum
    Replies: 3
    Last Post: February 6th 2011, 08:51 PM
  2. Simplification
    Posted in the Trigonometry Forum
    Replies: 7
    Last Post: October 11th 2010, 10:08 AM
  3. simplification through substitution
    Posted in the Algebra Forum
    Replies: 2
    Last Post: September 26th 2010, 02:13 PM
  4. Simplification
    Posted in the Algebra Forum
    Replies: 1
    Last Post: August 12th 2009, 06:37 AM
  5. Simplification
    Posted in the Algebra Forum
    Replies: 1
    Last Post: April 3rd 2008, 11:04 PM

Search Tags


/mathhelpforum @mathhelpforum