Question

9) The cost of the book is 5 rupees more than twice the cost of a pen. Show
this using linear equation by taking Cost of book(x) and cost of a pen(x).​

Answer 1

Answer:

x=2y

or, x−2y=0

Step-by-step explanation:

Let the cost of a notebook be Rs. x and that of a pen be Rs. y.

Given,

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

Then x=2y

or,

x−2y=0.

This is the required linear equation in two variable.