Question

The cost of a notebook is twice the cost of pen. write a linear equation in two variables to represent this statement.

Answer 1

Answer:

Step-by-step explanation:let cost of notebook be x and the cost of pen be y

                                           so the equation is x=2y

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Answer 2

Solution:

Let the cost of a notebook to be = ₹ x

Let the cost of a pen to be = ₹ y

According to the question,

The cost of a notebook is twice the cost of a pen.

i.e., Cost of a notebook = 2×Cost of a pen

x = 2×y

x = 2y

x-2y = 0

x-2y = 0 is the linear equation in two variables to represent the statement ‘The cost of a notebook is twice the cost of a pen’.