# NCERT CBSE Class 10th Mathematics Chapter 3: Pair of Linear Equations in Two Variables

Safalta Expert Published by: Sylvester Updated Wed, 22 Jun 2022 06:40 PM IST

## Highlights

NCERT CBSE Class 10th Mathematics Chapter 3: Pair of Linear Equations in Two Variables

The third chapter of CBSE Class 10th Mathematics is ‘Pair of Linear Equations in Two Variables’.
Students will come to know that the equations in which the power of all the variables involved is one are called linear equations. The degree of a linear equation is always one.
The general form of a linear equation in two variables is ax + by + c = 0, where a and b cannot be zero simultaneously.

### Some important topics to study in this chapter are as follows:

• Graphical Method of solution of a pair of linear equations
• Algebraic Methods of solving a pair of linear equations – Substitution, Elimination and Cross-multiplication
• Equations reducible to a pair of linear equations in two variables

## If a pair of linear equations is consistent, then the lines will be

intersecting or coincident

y-axis

x-axis

## The graph of y = 4x is a line

passing through the origin

## Two equations in two variables taken together are called

simultaneous equations