Question

I. - The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. (Take the cost of a notebook to be Rs x and that of a pen to be Rs y).​

Answer 1

Answer:

Given that cost of a notebook (x) is twice the cost of a pen(y). So, x = 2y. x – 2y = 0 is the linear equation in two variables that represent the statement.

Step-by-step explanation:

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Answer 2

The cost of a notebook is twice the cost of a pen, Take the cost of a notebook to be ₹ x and that of a pen to be ₹ y

x = 2y

x - 2y = 0