Question

the cost of a notebook is twice the cost of a pen. write a linear equation in two variables to represent this statement ​

Answer 1

Answer:

let the cost of a notebook be ₹x .

let the cost of a pen is ₹y.

Then the linear equation is x=2y..

Answer 2

Let the cost of a notebook to be = ₹ x

Let the cost of a pen to be = ₹ y

According to the question,

The cost of a notebook is twice the cost of a pen.

i.e., Cost of a notebook = 2×Cost of a pen

$x = 2y$

$x - 2y = 0$

x-2y = 0 is the linear equation in two variables to represent the statement 'The cost of a notebook is twice the cost of a pen'.