Question

4notebook+7pen=115
4notebook+2pen=90
what is the price of a notebook and what is the price of a pen?​

Answer 1

20 rupees for notebook and 5 rupees for pen

Answer 2

Answer:

price of one notebook is 20

price of one pen is 5

Step-by-step explanation:

let value of one notebook be x

value of one pen be y

our equations become

4x+7y=115

4x+2y=90

sustract second equation from first equation

we get y=5 and x=20

price of one notebook is 20

price of one pen is 5