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:

Step-by-step explanation:

Notebook Price = x

Pen Price = y

x = 2y this is the linear equation in two variable to represent this statement.

Answer 2

Answer:

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

Cost of notebook = 2 × Cost of pen

x = 2y

x − 2y = 0