Reduce[1/2 (Erf[-\[Infinity], Sqrt[2] (6.32456 - x)] - 1.00193 Erf[-\[Infinity], -Sqrt[2] x])==0&&-5<x<5])

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.