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:

the cost of notebook= x

the cost of pen = 2x

Answer 2

Answer:

x=2y or x-2y=0

Step-by-step explanation:

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

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

Thus,

x=2y or x-2y=0