Question

the cost of one notebook is twice the cost of a pen write a linear equation in two variable to represent this statement​

Answer 1

Step-by-step explanation:

let the cost of a pen x

so,

cost of a notebook = 2× cost of a pen

= 2× x

=2x

therefore , linea equation is x= 2xor 2x = x.

Answer 2

Let the cost of a notebook to be = ₹ x

Let the cost of a pen to be = ₹ y

According to the question,

The cost of a notebook is twice the cost of a pen.

i.e., Cost of a notebook = 2×Cost of a pen

$x = 2y$

$x - 2y = 0$

x-2y = 0 is the linear equation in two variables yo represent the statement 'The cost of a notebook is twice the cost of a pen'.