Class - 10 Chapter 3 Introduction to (Pair of Linear Equations in Two Variables) NCERT CBSE

Linear equation in two variable

The graph of every linear equation in two variables need not be a line.

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 Rs x and that of a pen to be Rs y).

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).

The cost of ball pen is Rs.5 less than half of the cost of fountain pen. Write this statement as a linear equation in two variables.

Write each of the following equation in two variables: (i) 2x=3 (ii) y=3