Question

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

Answer 1

Let the cost of pen be x and the notebook be 2x.

Answer 2

$\boxed{\boxed{\bf{ANSWER:-}}}$

Let cost of pen = x

Let cost of notebook = y

Then,

Cost of notebook = 2(Cost of pen)

$= > y = 2x$

$= > y - 2x = 0$

Hence, the required equation.

$\mathfrak{y-2x=0}$