Решите задачи уравнением
1) (x + 23) + 18 = 52 x + 23 + 18 = 52 x = 52 - 23 - 18 x = 11 11 + 23 + 18 = 52 2) (x + 14) - 12 = 75 x + 14 - 12 = 75 x = 75 - 14 + 12 x = 73 73 + 14 - 12 = 75
(х+23)+18=52 х=23+18 х=41 52-41=11