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Re: Solve Minus Sign

  • To: mathgroup at
  • Subject: [mg106335] Re: [mg106276] Solve Minus Sign
  • From: Bob Hanlon <hanlonr at>
  • Date: Fri, 8 Jan 2010 04:18:58 -0500 (EST)
  • Reply-to: hanlonr at

At least in this case, just use Simplify.

Solve[Rr/s == Rr + x, x][[1]] // Simplify

{x -> Rr*(1/s - 1)}

Bob Hanlon

---- Fabian <fabian.uriarte at> wrote: 

Dear Group-

How can one get rid of the minus sign in:

Factor[Solve[Rr/s == Rr + x, x]]

{{x -> -((Rr (-1 + s))/s)}}

We'd like Mathematica to provide answers with the minus sign
"multiplied through" (remove Factor[] doesn't solve the problem)

Thank you in advance all.

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