a) 9 * 9 - 7 = 81 - 7 = 74
b) 9 * -1 - 7 = -9 - 7 = -16
c) 9 * 1/3 - 7 = 3 - 7 = -4
d) 9 * -1 1/3 - 7 = -12 - 7 = -19
Liczę na naj ;)