Question

1.
EXERCISE 4.1
The cost of a notebook is twice the cost of a pen. Write a linear equation in two
variables to represent this statement.
(Take the cost of a notebook to be x and that of a pen to be y).​

Answer 1

I hope you like my answer..........

Answer 2

Answer:

let the cost of the notebook be : x

let the cost of the pen be : y

ACCORDING TO QUESTION

x = 2y