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x +2y = 4 | 2 | 2x +4y = 8
2x -y = 3 | 1 | 2x -y = 3 -
5y = 5
y = 5/5
y = 1
subtitusi :
x +2y = 4
x + 2.1 = 4
x = 4 -2
x = 2
jadi nilai x = 2 dan y = 1