Question

The cost of a notebook is twice the cost of a pen.write a linear equation in 2 variable to represent the statement .(take the cost of a notebook to be x and that of pen be rs y)??

Answer 1

Hello friend!!!
x=2y
x-2y=0

Answer 2

Answer:

The  linear equation in 2 variables to represent the given statement is x = 2y

Step-by-step explanation:

Given statement is

The cost of a notebook is twice the cost of a pen

Required to write a linear equation in 2 variables to represent the statement

Solution

Let us take the cost of a notebook = x

and the cost of a pen = y

Since the cost of a pen is y, then twice the cost of a pen = 2y

As per the given statement, the cost of a notebook is twice the cost of a pen, we have

x = 2y

∴ The linear equation in 2 variables to represent the given statement is x = 2y

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