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x-y = 2
------------- kurangkan
2y= 8
y=4
subsitusikan y tersebutut ke pers salah satu
x+y=10
x+(4)=10
x=10-4
x=6
jadi, (x,y) = (6,4)
x - y = 2
--------------- +
2x = 12
x = 6
x + y = 10
6 + y = 10
y = 10 - 6
y = 4
x,y = (6,4)