The cost of a notebook is twice the cost of a pen.Write a linear equation in two variable two represent this statement. (Take the cost of a notebook to be rupee x and that of a pen to be rupee x.
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Answer:
x-2y=0
Explanation:
let the cost of notebook be x and of pen be y
according to the question,
cost of notebook= 2×cost of pen
or, x= 2y
or, x-2y=0
which is the required equation.
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