Question

Cost of pen is twice a note book. Write a linear equation in two variables to represent this situation.

Answer 1

We have,

Cost of pen is twice a note book.

Let the cost of pen$=x$

Cost of note book$=y$

Then, according to given question,

Cost of pen$=$twice a note book

$x=2y$

$x-2y=0$

Hence, this is the answer.