Respuesta :

devishri1977

Answer:

-27

Step-by-step explanation:

Number be x

Eight added to number: x+8

sum is doubled: 2*(x + 8)

-11 less than number: x -11

2*(x + 8) = x -11

2*x + 2*8 = x - 11

2x + 16 = x - 11

2x - x = -11 -16

x = -27