Jawabanmu

2013-12-15T20:08:34+07:00
(x+3y-2=0) x 2
2x+6y-4=0
2x-y+3=0
-------------------- -
7y-7=0
y=1

2x-y+3=0
2x-1+3=0
2x+2=0
x=-1

x=-1, y=1 kalo gak salah gitu cek lagi ya :)