If $$ ({x+y over z})=2$$ , then what is the value of $$ [{ {y over {y-z}}}] +[{ {x over {x-z}}}]$$.

If $$ ({x+y over z})=2$$ , then what is the value of $$ [{ {y over {y-

1.	If $$ ({x+y over z})=2$$ , then what is the value of $$ [{ {y over {y-z}}}] +[{ {x over {x-z}}}]$$.
A.	0
B.	1
C.	2
D.	-1
Answer» D. -1