Re: simultaneous equations - eliminating variables and solving

*To*: mathgroup at smc.vnet.net*Subject*: [mg100224] Re: simultaneous equations - eliminating variables and solving*From*: Erik Max Francis <max at alcyone.com>*Date*: Thu, 28 May 2009 06:50:51 -0400 (EDT)*References*: <gvlhv1$dq6$1@smc.vnet.net>

nninja wrote: > This is what my formula looks like sofar. > > Solve[{a == b + c + d, e == f + g + c + 2 d, h == c/(b*g), > i == d/(c*g), h*i == d/(b*g^2), j == m*g/f, k == l*m, > n + m + b + c == g + l}, {g}] > > Basically, I can solve for the variable I want, but I am having trouble eliminating the ones I don't want (ie. I am getting an answer that is in terms of the wrong variables) > > I have been in the help files for ages, and don't really understand how to do this. > I would really appreciate some pointers!! Try specifying the third "elims" argument, which specifies the variables you'd like Solve to try to eliminate when expressing the answer. -- Erik Max Francis && max at alcyone.com && http://www.alcyone.com/max/ San Jose, CA, USA && 37 18 N 121 57 W && AIM/Y!M/Skype erikmaxfrancis Not bad from a girl from the gutter like me -- Kina