Question

the cost of a notebook is twice the cost of pen.wrote a linear equation in one variable​

Answer 1

Answer:

x=2y. hope this will help you!!

Step-by-step explanation:

let the cost of a notebook be x

let the cost of a pen be y

so, x=2y

Answer 2

Answer:

2x+x

Step-by-step explanation:

If Cost of Pen is x

Then,

Cost of Book is 2x

By Condition,

Linear Equation Will Be in this way

2x+x