Tolong jawab no 6 yaa

X – 2y = 6…………(1)
3x + 5y = 7……….(2)
eleminasi x
x – 2y = 6 kalikan 3
3x + 5y = 7. kalikan 1
3x – 6y = 18
3x + 5y = 7
========== –
– 11y = 11
y = 11/-11 = -1
subst nilai y = -1 ke pers
x – 2y = 6
x – 2(-1) = 6
x + 2 = 6
x = 6-2
x = 4
jadi (4,-1)