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Re: [newb] simple equation substitutions


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



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