Question: How to solve?

Question:How to solve?

kh2n 220 Maple

I want to solve the following equationg for beta assuming SteL<0, SteV<0, h>0, R1>0, beta>0

sqrt(Pi)*beta=-1/h*SteL/(exp(h^2*beta^2)*erf(h*beta))+R1*SteV/(exp((beta/R1)^2)*erfc(beta/R1));

Can any one help me out?

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