a -4 b -4k c 4 d 4k 4/8/2013 | Hgf from Sykesville, PA | 1 Answer | 0 Votes Mark favorite Subscribe Comment
What is 4 - 8? It is -4. So 4k - 8k = -4k Think of it like this: Say k is equal to $1. I have $4 in the bank and I spend $8. What is my bank balance now? $-4. 4/8/2013 | Andrea R. Comment