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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 Questions 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 (2026-27)
(A) Main Concepts and Results
An equation is a statement in which one expression equals to another expression. An equation of the form ax + by + c = 0, where a, b and c are real numbers such that a ≠ 0 and b ≠ 0, is called a linear equation in two variables. The process of finding solution(s) is called solving an equation.
The solution of a linear equation is not affected when
(i) the same number is added to (subtracted from) both sides of the equation,
(ii) both sides of the equation are multiplied or divided by the same non-zero number.
Further, a linear equation in two variables has infinitely many solutions. The graph of every linear equation in two variables is a straight line and every point on the graph (straight line) represents a solution of the linear equation. Thus, every solution of the linear equation can be represented by a unique point on the graph of the equation. The graphs of x = a and y = a are lines parallel to the y-axis and x-axis, respectively.
(B) Multiple Choice Questions
Write the correct answer:
Sample Question 1 :
The linear equation 3x – y = x – 1 has :
(A) A unique solution
(B) Two solutions
(C) Infinitely many solutions
(D) No solution
Solution : Answer (C)
Sample Question 2 : A linear equation in two variables is of the form ax + by + c = 0, where
Please refer to attached file for NCERT Class 9 Maths Linear Equations In Two Variables Questions
| Chapter 1 Number Systems NCERT Book PDF |
| Chapter 1 Number Systems NCERT Book PDF |
| Chapter 2 Polynomials NCERT Book PDF |
| Chapter 2 Polynomials NCERT Book PDF |
| Chapter 3 Coordinate Geometry NCERT Book PDF |
| Chapter 3 Coordinate Geometry NCERT Book PDF |
| Chapter 4 Linear Equations In Two Variables NCERT Book PDF |
| Chapter 4 Linear Equations In Two Variables NCERT Book PDF |
| Chapter 5 Introduction To Euclid's Geometry NCERT Book PDF |
| Chapter 5 Introduction To Euclid's Geometry NCERT Book PDF |
| Chapter 6 Lines and Angles NCERT Book PDF |
| Chapter 6 Lines and Angles NCERT Book PDF |
| Chapter 7 Triangles NCERT Book PDF |
| Chapter 7 Triangles NCERT Book PDF |
| Chapter 8 Quadrilaterals NCERT Book PDF |
| Chapter 8 Quadrilaterals NCERT Book PDF |
| Chapter 09 Circle NCERT Book PDF |
| Chapter 09 Circle NCERT Book PDF |
| Chapter 10 Heron's Formula NCERT Book PDF |
| Chapter 10 Heron's Formula NCERT Book PDF |
| Chapter 11 Surface areas and Volumes NCERT Book PDF |
| Chapter 11 Surface areas and Volumes NCERT Book PDF |
| Chapter 12 Statistics NCERT Book PDF |
| Chapter 12 Statistics NCERT Book PDF |
Free study material
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.
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