Question

the cost of a notebook is thrice the cost of a pen write a linear equation in two variables

Answer 1

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Let the cost of notebook be 'x'

Let the cost of pen be 'y'

Therefore,

x = 3y

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Answer 2

ANSWER:

The required linear equation is $x - 3y = 0$.

Step-by-step explanation:

Given: The cost of a notebook is thrice that of a pen.

To Find The linear equation for the problem.

Solution:

• Let $x$ be denoted for the cost of a pen.
• Let $y$ be denoted for the cost of the notebook.
• The linear equation is $x = 3y$ or $x - 3y = 0$.
• Or it can be written as  $x - 3y = 0$
• Therefore the required linear equation is $x - 3y = 0$.

PROJECT CODE: #SPJ3