Respuesta :

Answer:

-8+9+(-6)+(-4) = -9

-8+9(-6)+(-4) = -66

Step-by-step explanation:

-8+9+(-6)+(-4) =

= (-8)+(-6)+(-4)+9

= -(8+6+4)+9

= -(18)+9 = 9-18

= -(18-9)

= -(9)

= -9

-8+9(-6)+(-4) =

= (-8)+(-54)+(-4)

= -(8+54+4)

= -(66)

= -66

Otras preguntas