tolong jawab ya kak...please!!!

MAPEL = MATEMATIKA
KELAS = 8
BAB = SPLDV

eliminasi nilai x
3x + 2y = 3
3x - 2y = -9
_________-
4y = 12
y = 12/4
y = 3

eliminasi nilai y
3x + 2y = 3
3x - 2y = -9
_________+
6x = -6
x = -6/6
x = -1

hp = { -1,3 }

semoga membantu