Math, asked by anjana6486, 9 months ago

4notebook+7pen =115
4notebook+2pen=90
what is the cost for 1notebookad1pen

Answers

Answered by Anonymous
3

Answer:

20 notebook 5 pen maybe

Answered by ankitgaur4228
2

Answer:

NOTEBOOK= N

PEN= P

7 P= 115-4N

P=115-4N/7..........1

4N=90-2P

N=90-2P/4

PUT IN EQUATION 1

P=115-4*90-2P/4/7

Step-by-step explanation:

I THINK IT WILL HELP YOU

Similar questions