Some important points to revise from the chapter are: • An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear equation in ...

CBSE Class 9 Maths Extra Questions and Answers for Chapter 4 Linear Equations In Two Variables - Practice these important questions to obtain desired marks in exams in 2020-2021.