Respuesta :

2x = -11 + 9
2x = -2
x= 2/2
x= 1

2x-9= -11

Move -9 to the other side

Sign changes from -9 to +9

2x-9+9= -11+9

2x= -11+9

2x=-2

Divide both sides by 2

2x/2= -2/2

Answer: x= -1