How to Solve Implicit Plot

Let A =1; c = 2; t =1; x = [-50:50] is interval, and z = x-c*t;

with implicit equation r/(1-r)^((c+1)/(c-1)) = A*exp(-z/(c-1))

I want plot (x,r) so that the graph shaped travelling waves

How to solve?

[Walter Roberson]

What is the difference between this and your previous http://www.mathworks.com/matlabcentral/answers/286693-how-to-solve-implicit-plot-in-analitic-equation ?