Solution of equations resources
Cramer's rule can be used to solve simultaneous equations using determinants. This leaflet states and illustrates the rule. (Engineering Maths First Aid Kit 5.2)
Matrices - solving two simultaneous equations
Matrices 8: This leaflet explains how matrices can be used to solve a pair of simultaneous equations. There is an accompanying video tutorial.
Using the inverse matrix to solve equations
This leaflet explains how simultaneous linear equations can be solved by calculating the inverse of an appropriate matrix. (Engineering Maths First Aid Kit 5.6)