Question

the cost of notebook is twice the cost of pen write a linear equation in two variables to represent the statement (take the cost of a notebook to be RSx and that of pen to be Rs y)

Answer 1

ATQ
cost of note book=twice the pen
x=2y
x-2y=0

Answer 2

HEY DEAR .

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Let the cost of the notebooks be x .
And , cost of pen be y .

It is given that
Cost of notebook = 2 × cost of pen
x = 2y
x - 2y = 0
x - 2y = 0 is the linear equation in two variables .

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