The cost of a notebook is rs6 more than twice the cost of a pen. 6 time the cost of the pen is equal to 3 times the cost of the notebook. represent graphically

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.