x + 2y = 10................ eqn(1)
2x + 3y = 16............... eqn(2)
multiply eqn 1 . by 2
2x + 4y = 20..........................(a)
2x + 3y = 16..........................(b)
tek eqn(a) - eqn(b)
y = 4
multiply eqn(2) by 2 and eqn(1) by 3
3x + 6y = 30...................(c)
4x + 6y = 32....................(d)
tek......eqn(c) - eqn(d)
-x = -2
x = 2