A colleague recently showed me the following puzzle game and I'm interested in how this can be solved. I thought it would be a good talking point for you guys as well :)
A detailed description of the puzzle is here. A sequence of 7 cubes may be rotated about the axis. The puzzle is to rotate them until all 4 equations are correct, such as $2 + 2 / 4 = 1$. Operators are evaluated left to right. The faces of the cube presented in the video (not agreeing with the image) are:
The following pictures show the sides...
Other than trial and error, is there an easy way to solve this?