Question

The cost of notebook is twice the cost of a pen if the cost of a notebook is x and that of a penis why then a linear equation in two variable to represent the given condition is

Answer 1

cost of notebook =x
and let the cost of pen be=y

A.T.Q

x=2y
x-2y=0

Answer 2

Step-by-step explanation:

It must be

cost of notebook = X

cost of pen =2x