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a-b = 26
(a-5) + (b-5) = 34
a + b = 44
a - b = 26 _
2b = 18
b = 9
a - b = 26
a - 9 = 26
a = 35
2 tahun yang akan datang:
a = 35 + 2 = 37
b = 9 + 2 = 11