а) x = -6: y = (1/3) * (-6) - 12 = -2 - 12 = -14
б) x = 16: y = (1/3) * 16 - 12 = 16/3 - 36/3 = -20/3 ≈ -6.67
в) x = 0: y = (1/3) * 0 - 12 = 0 - 12 = -12
Ответ: а) -14; б) -20/3; в) -12