jawab pakai cara .. bantu aku ya

1/2 x + y = 4
2/3x - y = 2/3  .... di eliminasi

7/6 x = 14/3
x = 14/3 x 6/7
x = 4


1/2x + y = 4
1/2(4) + y = 4
y = 4 - 2
y = 2

jadi, jawabannya C