а) 56 - (28 + x) = 56 - 28 - x = 28 - x
б) 92 + n - 24 = 92 + n - 24 = 68 + n
в) m - 29 - 38 = m - 67
а) 56 - (28 + x) = 56 - 28 - x = 28 - x
б) 92 + n - 24 = 92 + n - 24 = 68 + n
в) m - 29 - 38 = m - 67