# NCERT Solutions | Class 9 Maths Chapter 4 Linear Equation in two variables

NCERT Class 9 Maths Solutions PDF: In this post, we have discussed the solution of the Maths class 9 book which is followed in all CBSE schools. Solutions are given below with proper Explanation and utmost care has been taken to ensure that the solutions are correct. Answers provided will not only help in completing all the assignments but also help students in clearing their concepts. Students can download the solutions by printing the chapters by using the command Ctrl+P in google chrome and saving it in PDF format. All the best !! Please support us by sharing this website with your school friends.

## Exercise 4.2 Class 9 Maths Chapter 4 Linear Equation in two variables

1. Which one of the following options is true, and why?
y = 3x + 5 has
(i) a unique solution, (ii) only two solutions, (iii) infinitely many solutions

2. Write four solutions for each of the following equations:
(i) 2x + y = 7 (ii) πx + y = 9 (iii) x = 4y

3. Check which of the following are solutions of the equation x – 2y = 4 and which are
not:

4. Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.