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3x +2y = 3
x - 2y = 5 ---> dikali -1
3x+2y = 3
-x +2y = 5
4x = 8
x = 2
3 (2) + 2y = 3
6 + 2y = 3
2y =-3
y = -3/2
titik potong (x,y)
titik potong ( 2, )