Want to Really Know, I Got a question 101!?

[Yahruth Els]

I need some clarity here!

If I wanted to purchase some property a single-family unit and the asking price is X amount of dollars for purchase and down payment is that X amount of dollars minus a few thousand (92%) but loan purchase of refinancing is there for option, there is another figure of X amount of a current balance which 

is 7 seven times greater than the purchase price, because the loan is own by Fannie Mae or Freddie Mac but the property value is the X amount of dollars mention at the beginning, what do this all mean???  I need help to understand and I know there is someone out there that feels my pain in comprehending this simple quirk of info. I don't understand.  I truly would appreciate anyone that could just clear up what this all means, and i guarantee I will understand better.

Peace and blessing (Want to really know and i got a question 101!?  

Yahruth