RE: Is mathematica able to transform formula

*To*: mathgroup at smc.vnet.net*Subject*: [mg71884] RE: [mg71864] Is mathematica able to transform formula*From*: "Mark Harder" <harderm at onid.orst.edu>*Date*: Sat, 2 Dec 2006 05:11:04 -0500 (EST)

In[1]:= Clear[a, b, c, f] Eliminate[{f == a*b + 5 && c == a*b}, {a, b}] Out[1]:= -5 + f == c Or, if you prefer: In[2]:= Clear[a, b, c, f] Solve[{f == a*b + 5 && c == a*b}, f, {a, b}] Out[2]:= {{f -> 5 + c}} Mark Harder > -----Original Message----- > From: ajikoe at gmail.com [mailto:ajikoe at gmail.com] > Sent: Friday, December 01, 2006 3:22 AM > To: mathgroup at smc.vnet.net > Subject: [mg71864] Is mathematica able to transform formula > > Hello, > > I have a question: > if I have a symbolic expression: > f = a * b + 5 > c = a * b > > Can Mathematica builds f = c + 5 for me ? > > > Sincerely Yours, > pujo >