Помоги те с уравнением: -61+х=-42; 34-х=-18:

- 61 + х = - 42                                 34 - х = - 18х = - 42 - (- 61)                                х = 34 - (- 18)х = - 42 + 61                                    х = 34 + 18х = 61 - 42                                       х = 52х = 19                                              Проверка:Проверка:                                       34 - 52 = - 18- 61 + 19 = - 42