Water supply network example

The lesson describes the problem of a water supply network. It is shown how to know the numebr of unknowns and equations. The problem reduces to a system of linear equations, which is solved by determining the dimension of the linear subspace, which is the number of holes in the network, providing a base for this linear subspace, and a particular solution, and all this without using the algorithm. The reader will be surprised by the simplicity of the structure of all solutions.