I was surfing the web some time ago and I found this useful tool:
I think I should share it here because at my degree we are using a very similar program (Esuite could be called the open-source clone), basically to solve thermodynamic problems.
I've tested it with simple ecuations and seems to be a very interesting program for those who want a magical black-box that, simply, does its job.
To use it in linux, I've downloaded the tar.gz package (no need to install)
Once you got it, uncompress and mark as executable the eSuite.jar file inside.
Finally, execute it with OpenJDK or Java and you're done!