NCERT Solutions for Class 9 Maths Chapter 4 Linear Equations in Two Variables - PDF Download

NCERT solutions for class 9 maths chapter 4 Linear equation in Two variables shows the relationship between two variables. These equations describe the relationship between two variables and how they are represented graphically. NCERT solutions for class 9 maths chapter 4 Linear Equations in two Variables include exercises like writing linear equations, finding linear equations solutions, graphing linear equations, and graphical representation of equations of lines parallel to x axis and y axis. 

NCERT solutions by eSaral, class 9 maths chapter 4 Linear Equations in two Variables explains all the fundamental concepts effectively so that students can easily grasp the concepts.Here, our mathematics expert teachers have provided comprehensive answers to all the questions of exercises available in NCERT solutions for class 9 maths chapter 4. It also contains the highlighting of all the topics and sub-topics from chapter 4 that will help you in forming a solid foundation of the chapter. The subject matter experts who developed these NCERT solutions have collated these NCERT chapter 4 questions for the students to review from the book. NCERT solutions for class 9 maths chapter 4 are also available in free pdf format which can be downloaded by clicking on the given link.

Important Topics covered in Chapter 4 - Linear Equations in Two Variables

NCERT solutions for class 9 maths give you the best coverage for all the topics and subtopics in this chapter. Here are some important topics covered in chapter 4.

4.1 Introduction - The chapter starts off by giving a general overview of linear equations in one variable, which is covered by the previous class. It goes on to explain how linear equations in two variables relate to each other. You will also find linear equation definition in one and two variables along with examples in NCERT solutions for class 9 math chapter 4.

4.2 Linear Equations - An equation is a sum of a constant and a variable under the condition that they are equal. When the variables in the simplest form, such as x, y, z, etc., are included in the equation, it is known as a linear equation. 

When you have two variables in a linear equation instead of just one, it's called a linear equation in two variables.

Example: 6y-4z=9 is a linear equation in two variables.

4.3 Solution of a Linear Equation - You’ve already learned that a one-variable linear equation has a different solution. But what about a two-variable linear equation? We’ll look at that in this section.

Linear equations in two variables have 2 variables. There is a high probability of finding multiple solutions. Ex.  2x+3y = 12.

x = 3 and y = 2 because they both satisfy RHS. The solution to this equation is written as follows: (3, 2) (0, 4) (6, 0).

Therefore, it can be concluded that there may or may not be a unique solution to a linear equation in 2 variables.

NCERT Solutions for Class 9 Maths Chapter 4 Exercises

Linear Equation in two Variable class 9, chapter 4 is divided into 2 exercises. You can also check NCERT solutions class 9 maths chapter 4 for exercise questions and solutions by following the links below:

Benefits of Downloading The NCERT Solutions for Class 9 Maths Chapter 4 - Linear Equations in Two Variables

The NCERT provides solutions for class 9 maths chapter 4, Linear Equations in two variables, which can be downloaded for better understanding and learning. Here, we will discuss the benefits of downloading the NCERT solutions for this chapter.

1. These NCERT solutions by eSaral help students understand the fundamentals of the topics, giving them a better grasp of concepts.

2. Each exercise in the NCERT solutions comes with a series of questions. Referring to the solutions, students can check their progress and comprehension.

3. Practice using NCERT solutions provided by our maths experts, allows students to familiarize themselves with the kinds of questions that will be included in the exams and develop effective strategies to answer questions.

4. NCERT solutions are easily accessible and can be downloaded from eSaral website, making them easy for students to access at any time, anywhere.

Frequently Asked Questions

Question 1. What are the main topics covered in NCERT solutions for class 9 maths chapter 4 ?

Answer 1. Chapter 4 of NCERT solutions class 9 maths includes the basics of linear equation in 2 variables, linear equation solution, linear equation graph, equations of lines parallel to x-axes and y-axes. NCERT solutions for class 9 math chapter 4 linear Equations in two variables effectively cover the full concepts, formulas and exercises with appropriate examples and questions.

Question 2. How many questions are there in exercise 4.2 of chapter 4 ?

Answer 2. There are a total of four questions included in exercise 4.2 of chapter 4. You can practice these questions by downloading NCERT solutions for class 9 maths available on eSaral website.