Question

The cost of a notebook is wice the cost of a pena cursos variables to represent this statement
{take the cost of a notebook to be a® rupees X and that of a pant to be rupees y}​

Answer 1

Answer:

Let the cost of notebook be Rs x

Let the cost of pen be Rs y

It is given that

cost of notebook = cost of the 2pen

x =2y

x - 2y = 0

x -2y =0 is the liner equation in two variables

Step-by-step explanation:

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Answer 2

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Step-by-step explanation:

• Let the cost of one notebook be ₹ x
• Let the cost of one pen be ₹ y

Therefore, we can write the required linear equation in two variables considering the given information as,

Cost of notebook = 2 × Cost of pen

⇒ x = 2y

Since any linear equation in two variables is expressed as: ax + by + c = 0,

∴ x - 2y = 0 is the required linear equation in two variables which represents the given information.

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