Question

9. The cost of a notebook is thrice the cost of a pen, If cost of Notebook be Rs x and cost of pen be Rs y, Express in the form of linear equation.



x = 2y

x = 3y

3x = y

x = y

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Answer 1

Step-by-step explanation:

let the cost of the pen be y

cost of notebook be x

A/Q

y = 3x