Question

9) The cost of the book is 5 rupees more than twice the cost of a pen. Show
this using linear equation by taking Cost of book(x) and cost of a pen(y).​

Answer 1

Answer:

The Cost of Book be (x)

The Cost of Pen be (y)

According to the Question,

The Cost of the book is 5 Rupees more than twice the cost of a pen.

So,

x = 2y + 5

Therefore,

It is proved in Linear Equation by x = 2y + 5

Step-by-step explanation:

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Answer 2

Answer:

x-2y=5

Step-by-step explanation:

Cost of the book is (x) and

Cost of the pen is (y)

Cost of the book = 5rupees

Therefore ,

x = 5

According to the given condition,

cost of the book is 5 rupees = "x=5"

more than twice the cost of a pen = "2y+5"

Frameing the equation in linear equation,

x=2y+5

i.e, x-2y=5

This is the ans proved in linear equation