Question

The cost of a book is three times the cost of a pen. Which linear equation in two variables represents the statement?
(x= cost of a pec. y = cost of a book)​

Answer 1

Answer:

Let the cost of a pen be x and the cost of a pencil be y

According to the statement, cost of a pen is thrice the cost of a pencil

⇒x=3y

⇒x−3y=0 which is a linear equation in two variables

...

hope it helps uh...

Answer 2

Answer:

x=3y

Step-by-step explanation:

this is the right answer.

x=3y