Question

6. The cost of 3 pens and a notebook is 72. If the con
the notebook is 18, find the cost of one pen.​

Answer 1

Step-by-step explanation:

Let the cost of pen be x and notebook be y

Acc to question

or, 3x+y=72

Here y=18

So 3x=72-y

or, 3x=72 -18

or, 3x=54

or, x=18

Hence the cost of one pen is 18

Answer 2

Answer:

Step-by-step explanation: consider cost of pen is x and cost of notebook is y

then 3*x+y=72=

given that y= 18 then 3x+18=72

then 3x = 54

cost of pen will be 54/3 = 18

IF U FEEL MY ANSWER IS GOOD PLEASE MARK ME AS THE BRAINLIEST