Results 1 to 3 of 3

Math Help - how do u solve 4^(3-x)=7?

  1. #1
    Junior Member
    Joined
    Aug 2011
    From
    shropshire
    Posts
    38

    how do u solve 4^(3-x)=7?

    how do u solve 4^(3-x)=7?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    12,116
    Thanks
    1000

    Re: how do u solve 4^(3-x)=7?

    Quote Originally Posted by Orlando View Post
    how do u solve 4^(3-x)=7?
    in this case, by using logarithms

    \log(4^{3-x}) = \log(7)

    now use the properties of logarithms to finish it
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,162
    Thanks
    70

    Re: how do u solve 4^(3-x)=7?

    RULE: if a^x = b then x = log(b) / log(a)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. need to solve summation equation to solve sum(x2)
    Posted in the Statistics Forum
    Replies: 2
    Last Post: July 16th 2010, 11:29 PM
  2. Replies: 1
    Last Post: June 9th 2009, 11:37 PM
  3. how do i solve this?
    Posted in the Algebra Forum
    Replies: 2
    Last Post: August 2nd 2008, 03:58 PM
  4. how to solve ..
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: August 2nd 2008, 09:17 AM
  5. please help me solve this
    Posted in the Algebra Forum
    Replies: 2
    Last Post: August 1st 2008, 10:50 PM

Search Tags


/mathhelpforum @mathhelpforum