Read and download the Chapter 4 Linear Equations In Two Variables PDF from the official NCERT Book for Class 9 Mathematics. Updated for the 2025-26 academic session, you can access the complete Mathematics textbook in PDF format for free.
NCERT Class 9 Mathematics Chapter 4 Linear Equations In Two Variables Digital Edition
For Class 9 Mathematics, this chapter in NCERT Book Class 9 Maths Linear Equations In Two Variables provides a detailed overview of important concepts. We highly recommend using this text alongside the NCERT Solutions for Class 9 Mathematics to learn the exercise questions provided at the end of the chapter.
Chapter 4 Linear Equations In Two Variables NCERT Book Class Class 9 PDF (2025-26)
4.1 Introduction
In earlier classes, you have studied linear equations in one variable. Can you write down a linear equation in one variable? You may say that x + 1 = 0, x + 2 = 0 and 2 y + 3 = 0 are examples of linear equations in one variable. You also know that such equations have a unique (i.e., one and only one) solution. You may also remember how to represent the solution on a number line. In this chapter, the knowledge of linear equations in one variable shall be recalled and extended to that of two variables. You will be considering questions like: Does a linear equation in two variables have a solution? If yes, is it unique? What does the solution look like on the Cartesian plane? You shall also use the concepts you studied in Chapter 3 to answer these questions.
4.2 Linear Equations
Let us first recall what you have studied so far. Consider the following equation: 2x + 5 = 0
ts solution, i.e., the root of the equation, is 5/2 − . This can be represented on the number line as shown below:
Please refer to attached file for NCERT Class 9 Maths Linear Eq
uations In Two Variables
| NCERT Book Class 9 Maths Number Systems |
| NCERT Book Class 9 Maths Number Systems Questions |
| NCERT Book Class 9 Maths Polynomials |
| NCERT Book Class 9 Maths Polynomials Questions |
| NCERT Book Class 9 Maths Coordinate Geometry |
| NCERT Book Class 9 Maths Coordinate Geometry Questions |
| NCERT Book Class 9 Maths Linear Equations In Two Variables |
| NCERT Book Class 9 Maths Linear Equations In Two Variables Questions |
| NCERT Book Class 9 Maths Introduction To Euclids Geometry |
| NCERT Book Class 9 Maths Introduction To Euclids Geometry Questions |
| NCERT Book Class 9 Maths Lines And Angles |
| NCERT Book Class 9 Maths Lines And Angles Questions |
| NCERT Book Class 9 Maths Triangles |
| NCERT Book Class 9 Maths Triangles Questions |
| NCERT Book Class 9 Maths Quadrilaterals |
| NCERT Book Class 9 Maths Quadrilaterals Questions |
| NCERT Book Class 9 Maths Herons Formula |
| NCERT Book Class 9 Maths Herons Formula Questions |
| NCERT Book Class 9 Maths Surface Areas And Volumes |
| NCERT Book Class 9 Maths Surface Areas And Volumes Questions |
| NCERT Book Class 9 Maths Statistics |
| NCERT Book Class 9 Maths Statistics and Probability Questions |
Important Practice Resources for Class 9 Mathematics
NCERT Book Class 9 Mathematics Chapter 4 Linear Equations In Two Variables
Download the official NCERT Textbook for Class 9 Mathematics Chapter 4 Linear Equations In Two Variables, updated for the latest academic session. These e-books are the main textbook used by major education boards across India. All teachers and subject experts recommend the Chapter 4 Linear Equations In Two Variables NCERT e-textbook because exam papers for Class 9 are strictly based on the syllabus specified in these books. You can download the complete chapter in PDF format from here.
Download Mathematics Class 9 NCERT eBooks in English
We have provided the complete collection of NCERT books in English Medium for all subjects in Class 9. These digital textbooks are very important for students who have English as their medium of studying. Each chapter, including Chapter 4 Linear Equations In Two Variables, contains detailed explanations and a detailed list of questions at the end of the chapter. Simply click the links above to get your free Mathematics textbook PDF and start studying today.
Benefits of using NCERT Class 9 Textbooks
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