Question

7. The cost of 5 pencils is equal to the cost of 2 ballpoints. Write a linear
equation in two variables to represent this statement. (Take the cost of
a pencil to be x and that of a ballpoint to be y).​

Answer 1

Step-by-step explanation:

Consider cost of pencil as Rs.x and cost of ballpoint as Rs.y

So we can write the cost of 5 pencil as Rs.5x

And the cost of 2 ballpoint as Rs.2y

We can write it as

5x=2y

Therefore, the linear equation can be written as

5x−2y=0