Jawabanmu

2014-01-14T07:14:41+07:00
1.
3y - 6 = 0
3y = 6
y = 2

y = 2x - 5
2 = 2x - 5
7 = 2x
3,5 = x
HP {(3,5 ,2)}

2.
2x - y = 2
3x - y = 5
dikurangi, hasilnya
-x = 3
x =3

2x - y = 2
2.3 - y = 2
6 - y = 2
y = 4
HP {(3,4)}