Question

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

Answer 1

Hint:- The first step here would be to assign variables to both the cost of a pen and the cost of a notebook. That would help as in representing it in the form of a linear equation.

Complete step-by-step answer:
Now the price of a notebook to be denoted by $'x'$ and that of a pen to be as $'y'$. As it is given that the cost of a notebook is twice the cost of a pen.
Therefore,
$x = 2y$
Or,$x - 2y = 0$
Which we can see is the linear representation of the statement.
Answer : $x - 2y = 0$

Note : These are the questions where they tell us the result also and we just have to term it in equation.So reading the question carefully will lead us to the result.