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

Step-by-step explanation:

notebook =x , pen=y

2×x=y

therefore2x=y

Answer 2

Answer:

answer

Step-by-step explanation:

let the cost of the book be X

&

the cost of the notebook be Y

so the equation be like

X + 2Y = 1

X + Y = 1