Answer:
-20=-20
Explanation:
Distribute the 4.
(4xp-20)-8=4p-28
get rid of the variables (replace p with 2)
(8-20)-8=8-28
Simplify or combine like terms
-12-8=-20
Simplify or combine like terms
-20=-20
Hope this helps feel free to contact me if you need further help :D