Save guides, add subjects and pick up where you left off with your BBC account. Simultaneous equations are often two linear equations that can be plotted on a set of axes. Each linear equation can ...

A MECHANICAL calculating machine for solving simultaneous linear equations up to ten in number under construction at the Massachusetts Institute of Technology by Drs. V. Bush and J. B. Wilbur was ...

simultaneous equations, graphs, factors and fractions, some deductive geometry of triangles and parallelograms, and logarithms. Book 4 deals with Pythagoras's theorem, the circle, similar ...