Re: simplifying a system of equations
- To: mathgroup at smc.vnet.net
- Subject: [mg106000] Re: [mg105983] simplifying a system of equations
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 30 Dec 2009 04:12:12 -0500 (EST)
- Reply-to: hanlonr at cox.net
Specify that you want y and z eliminated
Solve[x == y + z && y == e + r && z == t + u, {x}, {y, z}]
{{x->e+r+t+u}}
Bob Hanlon
---- Maria Davis <arbiadr at gmail.com> wrote:
=============
Hi!
I have a system of equations, that I want to solve symbolically and
not numerically how can I do this?
example: suppose I have the following system of equations:
x=y+z
y=e+r
z=t+u
I want to obtain x=e+r+t+u as a result.
I have tried the command
Solve[x == y + z && y == e + r && z == t + u, {x}]
but Solve returns :x=y+z
Can you please help me?
Thank you in advance