Question

What must be added to a+b+c to get a-b-c?

Answer 1

Answer:

ldkfbfjrfg

Step-by-step explanation:

le dkndjebdbfjfvfkfbfifjfhcb

Answer 2

Answer: $-2b-2c$

Step-by-step explanation:

$a-b-c-(a+b+c) = a-b-c-a-b-c = a-a-b-b-c-c = -2b-2c$