Re: [newb] simple equation substitutions
- To: mathgroup at smc.vnet.net
- Subject: [mg128539] Re: [newb] simple equation substitutions
- From: Peter Breitfeld <phbrf at t-online.de>
- Date: Fri, 2 Nov 2012 00:42:46 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
- Delivered-to: mathgroup-newout@smc.vnet.net
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- References: <k6t7qk$1mi$1@smc.vnet.net>
There are several possibilities:
expr = {y == x + 2, x == 7};
Solve[expr, {x, y}]
Reduce[expr]
Eliminate[expr, x]
giving:
{{x -> 7, y -> 9}}
y == 9 && x == 7
y == 9
--
_________________________________________________________________
Peter Breitfeld | Bad Saulgau, Germany | http://www.pBreitfeld.de