Question

the cost of a pen is 4 times the cost of penci write a linear equations in two variable to represent this statement​

Answer 1

let cost of pencil = X

let cost of pen. =Y

then the equation is 4x = y

Answer 2

let cost of pen = x

and, let the cost of pencil = y

according to conditions ,

cost of pen = 4(cost of pencil)

x = 4y is the required equation