tolong kerjakan dengan dengan benar pake cara eliminasi.. nomor 3 dan 5...

A. x + 2y = 2
3x - 4y = 16
_________-
= 3x - 2y = -14
= 2y = -14 + 3
= y = 11 : 2 = 5,5
B. 4x - 2y = 2
2x - 5y = 16
__________-
2x -(-3) = (-14)
= 2x + 3 = (-14)
2x = -14 - 3
2x = -17
x = -17 : 2
= (-8,5)