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3x = 27
x = 9
Bilangan terbesar = 9 + 4 = 13
Bilangan terkecil = 9
brarti kedua = x+2
ketiga = x+4
x+x+2+x+4 = 33
3x + 6 = 33
3x = 33-6
3x = 27
x= 27/3
x= 9
pertama = x = 9
kedua = x + 2 = 9+2 = 11
ketiga = x+4 = 9 +4 = 13
jumlah = 9+13 = 22