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x - y = 2 _
2y = 8
y = 8 : 2
y = 4
x + y = 10
x + 4 = 10
x = 10 - 4
x = 6
Jadi, X = 6 dan Y = 4
maaf kalo salah ..
x-y=2
2y=8
y=4
x+y=10
x-y=2
2x=12
x=6