Question

Solve the following pair of linear equation by graphical method.
x + 3y = 6 2x - 3y = 12​

Answer 1

Explanation:

$x + 3y = 6 \\ 2x - 3y = 12 \\ 12(x + 3y) = 6(2x - 3y) \\ 12x + 36y = 12x - 18y \\ 12x - 12x = - 18y - 36y \\ x = 54y$

x is 1 and y is 54