Pair of Linear Equations in Two Variables Basic points and complete explanations of all methods of solving pair of linear equations in two variables, for class X, chapter 3 Mathematics.  Maths Assignment on Chapter 3 Class X  General pair of linear equations in two variables ax 1  + by 1  + c 1  = 0  ….. (i) ax 2  + by 2  + c 2  = 0   ….. (ii)  There are four methods of solving pair of linear equations in two variables 1) Graphical Method : In this method the point of intersection of two lines on the graph is the solution of two equations. 2) Substitution Method 3) Elimination Method 4) Cross Multiplication Method (Deleted) Types of graphs, nature of solutions, consistency/ inconsistency all are discussed in the following table. Conditions Nature of Solution Type of Graph Consistent /Inconsistent     Unique Solution Two inter...