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X- y= 5
Eleminasi x
2y=-2
Y=-1
Subtitusi ke persamaan
X+y = 3
X -1 = 3
X = 4
Hp= 4,-1
Y = -X+3
X-Y = X-(-X+3)
5 = X+(X+3)
2X = 2,5+(2,5+3)
2X = 2,5+5,5
2X = 8
X = 8:2 = 4
Y = -X+3
Y = -4+3
Y = -1
Jadi X = -4 , dan Y = -1
Sorry kalau bingung Maklum Gk jago Matematika :v