Signal Inversion

[Faber]

Hello all.  I was thinking about some crazy new idea, but I need to invert the wave before mixing it back in with the signal.  Where I need the help is I don't need any more gain.
The only thing that I can think of is to invert the signal with small enough gain that I can put a non-inverting stage with gain 0<x<1 to nullify the gain in the inverting stage.

Am I crazy?  Is there something right in front of my face that I'm missing?

Thank you!!!

-stephen-

[R.G.]

Invert-with-gain-of-one is a trivial opamp process.

The gain of an inverting opamp stage is -Rf/Ri where Rf is the feedback resistor, Ri is the series resistor the input signal goes through. If Rf=Ri, the gain is -1.

[Faber]

Thank you R.G.!!!  I didn't know I could do that!  I was worried the opamp would freak out or something.