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The cost of a note book is twice the cos...

The cost of a note book is twice the cost of a pen. Write a linear equation in two variables to represent this statement.

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

The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. (Take the cost of a notebook to be Rs. X and that of a pen be Rs. Y).

Knowledge Check

  • Which of the following is a linear equation in one variable.

    A
    `y^(2) + 7 = 8`
    B
    xy = 1
    C
    x - 7 = 0
    D
    none of these
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