Question

the cost of a notebook is twice the cost of pen.wrote a linear equation in two variable​

Answer 1

Answer:

Let the cost of a notebook be Rs. x and that of a pen be Rs. y.

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

Then x=2y

or, x−2y=0.

This is the required linear equation in two variable.

Answer 2

Step-by-step explanation:

above one is correct answer