Question

Cost of book(x) exceeds twice the cost of pen(y) by Rs. 10. This statement can be expressed as linear Equation ​

Answer 1

$\huge\text{Answer :-}$

Cost of book(x) exceeds twice the cost of pen(y)

• → Cost of book = 2 × Cost of pen
• → x = 2y
• → x -2y = 0

by Rs. 10

• → x -2y = 10
• x -2y -10 = 0

Answer 2

Given: Cost of book(x) exceeds twice the cost of pen(y) by Rs. 10.

To find: We have to find out the linear equation of this statement.

Solution:

Let the cost of book is x and cost of pen is y rupees.

Given that cost of book(x) exceeds twice the cost of pen(y) by Rs. 10.

To determine the liner equation we have to equal the substraction of x to 2y with 10.

$x - 2y = 10$

So, the linear equation of the statement is x-2y=10