Simultaneous equations are often two linear equations that can be plotted on a set of axes. Each linear equation can be drawn as a line on a graph. The co-ordinate where the two lines intersect ...

Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values.

This comprehensive, self-contained text teaches state-of-the-art techniques for solving linear algebra problems, covers the most important methods for dense and sparse problems, and presents both the ...