Упрожнение 220 помогите
(а + 82) + (b + 68) = a + b + 150 = 50 +150 = 200 (126 + c) + (65 + d) = c + d + 191 = 109 + 191 = 300 (x +103) + (48 + y) = x + y + 151 = 249 + 151 = 400