PLZ HELP ANSWER ALL THE ONES YOU KNOW AND I WILL GIVE BRAINLY AND ALL MY POINTS! plz don't take my points if you don't know the answer

1. ( -6p - 8) - (2p - 6)


2. (-8r - 2) - (4r - 3)


3. (- Z - 8) - (6z - 5)


4. (-s - 5) + (2s + 2)


5. (-7s + 4) - (-8s + 4)


6. (-4f + 9) - (8f + 9)