Step-by-step explanation:
-4a-5b-2c I think that is the best answer
sutract 5a -3b +2b from a-4b -2c
a-4b-2c-(5a-3b+2b)
a-4b-2c-5a+3b-2b
a-5a-4b+3b-2b-2c
-4a-4b+b-2c
-4a-3b-2c
-(4a+3b+2c)
