Question

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

Answer 1

The relationship between the cost of books and pens is an illustration of linear equation.

The linear equation is (a) $x - 2y - 10 =0$

From the question, we have:

x exceeds 2 times y by 10

Rewrite as:

x exceeds 2y by 10

Exceed means plus (+)

So, we have:

$x = 2y + 10$

Equate the above equation to 0

$x - 2y - 10 =0$

Hence, the required equation is (a) $x - 2y - 10 =0$

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