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3x - 2y= -2
kita pake yang ada slah stu yg bernilai stu
y = 2x
3x - 2 (2x) = -2
3x - 4x = -2
-x = -2
x = 2
cari y sekarang
3.(2) - 2y = -2
6-2y = -2
-2y = -8
y = 4
3x-2y= -2
substitusi
3x-2(2x) = -2
3x-4x = -2
-x = -2
x = 2
y = 2x
y = 2.2
y = 4
hp = {(2,4)}