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3n + 6 = 63
3n = 57
n = 57/3 = 19
bilangan ganjil kedua = n+2 = 19 + 2 = 21
x + (x+2) + (x+4) = 63
x + x + 2 + x + 4 = 63
3x + 6 = 63
3x = 57
x = 19 (bilangan ganjil pertama)
bilangan ganjil kedua adalah.... 21