Question

class 9 mathematic find four different solation of the eruation​

Answer 1

Answer:

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Step-by-step explanation:

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

1. 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 to be Rs. y).

1. 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 to be Rs. y).Sol: Let the cost of a notebook = Rs x

1. 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 to be Rs. y).Sol: Let the cost of a notebook = Rs x The cost of a pen = y

1. 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 to be Rs. y).Sol: Let the cost of a notebook = Rs x The cost of a pen = y According to the condition, we have

1. 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 to be Rs. y).Sol: Let the cost of a notebook = Rs x The cost of a pen = y According to the condition, we have [Cost of a notebook] = 2 × 6

or 5x – y – 50 = 0

or 5x – y – 50 = 0or 5(x) + (

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