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coba cek
5+3 = 8
5-3 = 2 (selisihnya 2)
TERBUKTI
jadi bilangan itu adalah 5 dan 3
bilangan pertama = a
bilangan kedua = b
a + b = 8
a = 8 - b
substitusikan
a - b = 2
(8 - b) - b = 2
8 - b - b = 2
8 - 2b = 2
-2b = 2 - 8
-2b = -6
b = -6/-2
b = 3
a - b = 2
a - 3 = 2
a = 2 + 3
a = 5
jadi, bilangan pertama = 5 dan bilangan kedua = 3