**Pair of Linear Equations in Two Variables Class 10 Maths, deals with various concepts which are as under:-**

- Pair of Linear Equations in Two Variables
- Graphical Method of Solution of a Pair of Linear Equations
- Algebraic Methods of Solving a Pair of Linear Equations

Substitution Method

Elimination Method

Cross-Multiplication Method - Equations Reducible to a Pair of Linear Equations in Two Variables

## 1. Linear Equations in two Variable

Equation having two variables i.e. x and y and where the maximum power of both the variable is 1 are called linear equation in two variables.

### Solution of a Linear Equation in two variables

### When are pair of lines intersecting, coincident or parallel

For two lines: x+y+=0 and x+y+=0

Lines will be intersecting if ≠

Lines will be coincident if: = =

Lines will be parallel if: = ≠