MAHARASHTRA Class 10 - Simultaneous Linear Equations Videos

x + y = 5

Multiplying by 3,∴ 3x + 3y = 15∴ 2x − 3y = 4∴ 5x = 19∴ x = 3.8∴ y = 1.2

Let the cost of beans be x and that of nuts be y.

3x + 4y = 102x − 2y = 2 …multiplying by 2∴ 4x − 4y = 4... adding with 3x + 4y = 10∴ 7x = 14∴ x = 2, y = 1

In the elimination method, we eliminate by making the coefficient of the variable the same.