Question

[ ( + 3 ) – ( - 5 ) + ( - 7 ) ] – [ ( + 2 ) – ( - 10 ) ]

Answer 1

Respuesta:

Explicación paso a paso:

1

Answer 2

Respuesta:

-11

Explicación paso a paso:

(+)(+) = +

(-)(-) = +

(+)(-) = -

(-)(+) = -

[ ( + 3 ) – ( - 5 ) + ( - 7 ) ] – [ ( + 2 ) – ( - 10 ) ]

[  + 3  + 5  - 7  ] – [ + 2  + 10  ]

1 - [12]

1 - 12

-11