Question

$The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.\ \textless \ br /\ \textgreater \ (Take the cost of a notebook to be Rs. x and that of a pen to be Rs.y).$
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Answer 1

Step-by-step explanation:

x=2y

x-2y=0 is linear equation in two variables

Answer 2

cost of pen = x

cost of notebook = 2x