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2x-3y-2z = 2 l x1l 2x-3y-2z = 2
_______________ +
5x - 5z = 20
2x-3y-2z = 2 l x1 l 2x-3y-2z = 2
x-y-5z = 18 l x3 l 3x-3y-15z = 54
______________-
-x + 13z = -52
5x-5z=20 l x1 l 5x-5z=20
-x+13z= -52 l x5 l -5x+65z=-260
_____________+
60z = -240
z = -4
5x - 5(-4) = 20
5x = 0
x=0
x-y-5z=18
(0)-y-5(-4) = 18
-y = -2
y = 2
HP = {(x,y,z) l (0,2,-4)}
kalau gk slh sprti itu.....