Question

the cost of notebook is twice the cost of pen write a linear equation in two variables to represent this statement also state whether for any solution of this question can extra why take negative values​

Answer 1

Answer:

x-2y=0

Step-by-step explanation:

cost of x= cost of 2y

so x=2y

x-2y=0

Answer 2

Answer:

let the value of the book be x so

x+2x