Re: Setting up equations

*To*: mathgroup at smc.vnet.net*Subject*: [mg66024] Re: Setting up equations*From*: "Chris Chiasson" <chris.chiasson at gmail.com>*Date*: Thu, 27 Apr 2006 02:26:20 -0400 (EDT)*References*: <e2nd3i$33m$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

You probably realize that 5==a,6==b, and 7==c isn't the only solution. Also, depending on the values of x, y, and z, I am not sure if 5, 6, and 7 are valid solutions. eqn=5 x+6 y+7 z\[Equal]a x+b y+c z FindInstance[eqn,{a,b,c,x,y,z},Reals,4] Thread[CoefficientArrays[#,{x,y,z}][[2]]&/@eqn]