а) -(-b + 1.2) + 3.2 = b - 1.2 + 3.2 = b + 2б) (-2.8 + n) - n = -2.8 + n - n = -2.8в) (4.3 - y) - (5.8 + y) = 4.3 - y - 5.8 - y = -1.5 - 2y
а) -(-b + 1.2) + 3.2 = b - 1.2 + 3.2 = b + 2
б) (-2.8 + n) - n = -2.8 + n - n = -2.8
в) (4.3 - y) - (5.8 + y) = 4.3 - y - 5.8 - y = -1.5 - 2y