Question

giai ho mk nha

Answer 1

Kết quả là 11

Answer 2

11

Answer 3

ta có:\(\dfrac{x-y}{z-y}\)=\(\dfrac{x-z+z-y}{z-y} \)=\(\dfrac{x-z}{z-y}\)+1=-10.

\(\Rightarrow\)\(\dfrac{x-z}{z-y} \)= -10 - 1= -11 \(\Rightarrow \) \(\dfrac{x-z}{z-y}\)= -11.

\(\Rightarrow\)-\((\dfrac{x-z}{z-y})\)=11 \(\Rightarrow\) \(\dfrac{x-z}{y-z}\)= 11.

Vậy kết quả là 11.