I’ve solved out a T.A.N.K. model I am trying to simulate.

I’ve solved out the steady-state and am trying to implement into Dynare, however there are steady-state variables (and two associated equations) which are highly non-linear and cannot be decomposed further.

Upon searching the forums, I found the following thread from 2016:

https://forum.dynare.org/t/non-linear-steady-state/5889

which contains what I believe to be the precise solution I would like. However, the “helper” function is only used to solve one highly non-linear equation for one steady-state variable: h.

Any ideas of how to do something exactly as this, but with two highly non-linear equations and two (steady-state) unknowns?

Thank you in advance.