Question

1.
EXERCISEC 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

Step-by-step explanation:

Linear equation is y - 2x = 0

Answer 2

Step-by-step explanation:

Let the cost of notebook be x

and the cost of the pen be y

it is given that

cost of notebook = 2 x cost of pen

X= 2y

X - 2y =0

X - 2y= 0 is the linear equation in two variable..