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selisihnya
y-x = 39
y-x = 39
y=39+x
maka
x+y = 153
x+(39+x) =153
x+39+x = 153
2x+39=153
2x=153-39
2x= 114
x = 114/2x
x = 57
y-x = 39
y-57 = 39
y = 39+57
y= 96
jadi dua bilangan tersebut adalah 57 dan 96