NCERT Solutions class 9 Chapter 4 Linear Equations In Two Variables
0NCERT Solutions for class 9 Chapter 4 Linear Equations In Two Variables (updated) Exercise 4.1 Page: 68 1. The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. (Take the cost of a notebook to be ₹ x and that of a pen to be ₹ y)...