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

Step-by-step explanation:

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

Answer:

Let the cost of pen be x.

And the cost of notebook be y.

According to question,

The cost of notebook is twice the cost of pen.

So, the cost of notebook= 2x

So, y=2x is the required linear equation in two variable for the given question.

Hope this will help you!!