Pomocy!!zadanie 15.16 Potrzebuje na jutro!! Daje najj

ZADANIE 15 A)  6x - 9 = 2x + 61            + 9         + 9        6x = 2x + 70        4x = 70          x = 17,5 B)    7y - 46 = 3y - 6            - 3y       - 3y          4y - 46 = - 6          4y = 46 - 6           4y = 40             y = 10 ************************************************ ZADANIE NR 16 A)        14m - 16 = 9m + 19                     + 16          + 16              14m = 9m + 35               14m - 9m = 35                  5m = 35                     m = 7 B)          33n - 45 = 30n - 18                  - 30n       - 30n                  3n - 45 = - 18                   3n = - 18 + 45                    3n = 27                      n = 9 C)            6z - 13 = 8z - 25                      + 13        + 13                    6z = 8z - 12                      12 = 8z - 6z                       12 = 2z                         z = 6 D)              y + 40 = 2y - 11                      - y         - y                         40 = y - 11                           y = 51