Question

the cost of colour paper is rupees 7 more than 1 over 3 of the cost of white paper write the statement in linear equation in two variable​

Answer 1

Answer:

$x-3y+21=0$

Step-by-step explanation:

Let the cost of white paper be rs. x

And the cost of colour paper be Rs. y

Now, according to the question

cost of colour paper = (1/3) × cost of white paper + 7

or, y = (1/3)x + 7

or, 3y = x + 21

or x - 3y + 21 = 0

This is the required linear equation in 2 variables.

Answer 2

Step-by-step explanation:

Let the cost of white paper be rs. x

And the cost of colour paper be Rs. y

Now, according to the question

cost of colour paper = (1/3) × cost of white paper + 7

or, y = (1/3)x + 7

or, 3y = x + 21

or x - 3y + 21 = 0

This is the required linear equation in 2 variables.