Question

the cost of the pen is more than the cost of a pencil by rs 3 . express it by using the variable x and y . ( cost of a pen : rs x and cost of a pencil : rs y )​

Answer 1

Answer:

Let the cost of pen = x

Let the cost of pencil = y

ATQ:

x-y=3

x-y-3=0 (equation)

Hope it helps..