Introduction, 278. — Setting up the problem for solution, 282. — The solution algorithm, 282. — Interpretation of the solution, 284. — Systems with more than (n + 1) variables, 285. — Illustration: a 5 × 8 macromodel, 286. — Solutions with zero elements, 290. — Degenerate systems, 291. — Constant sign determinants, 292. — Appendix, 292.