Separately to the individual people or items in group
For EX:
3(2x-9) You will distribute 3 to 2x and -9, so it will be like 3 times 2x is equal to 6x and 3 times a -9 is a negative 27 (this is where the integer rules come)
(-)(-)=+
(+)(-)=-
HOPE IT HELPED YOU!