bantu please yaa Terima Kasih

3x + 2y = 7    (dikali 2)
2x - 5y = 11    (dikali 3)

didapatkan pers baru:
6x + 4y = 14
6x - 15y = 33

sehingga,
19y = -19
y = -1

maka,
3x + 2y = 7
3x - 2 = 7
3x = 9
x = 3


Jadi,
x = 3
y = -1