Respuesta :

[tex]\frac{20+2x}{5-x}=0;\ \ \ \ D:x\neq5\\\\\frac{20+2x}{5-x}=0\iff20+2x=0\\\\2x=-20\ \ \ \ /:2\\\\x=-10\in D[/tex]

Answer:

-10

Step-by-step explanation:

a p e x :)