Question

the cost of notebooks twice the cost of a pen write a linear equation in two variable to represent the statement take the cost of notebook to be X and the cost of the pen to be y​

Answer 1

Answer:

x=2y

x-2y=0

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Answer 2

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’.