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

Let the cost of a notebook be x and cost of pen be y

According to the question the cost of a notebook is twice the cost of pen

⇒x=2y

⇒x−2y=0 represent the statement.

Answer 2

Answer:

Let the cost of the pen be x.

Cost of notebook = 2x