[ - 10 - 2?
[ - 10 - 2. (5 - 14 : 7) - 5. (4 - 7)].
[ - 10 - 2. (5 - 14 : 7) - 5. (4 - 7)].
En resumen
[ - 10 - 2. (5 - 14÷7) - 5. (4 - 7)] ║ [ - 10 - 2. ( 5 - 2 ) - 5. (4 - 7)] ║ [ - 10 - 2. 3 - 5. (4 - 7)] ║ [ - 10 - 2. 3 - 5. - 3 ║ ║ - 12 3 - 8.
[ - 10 - 2.
(5 - 14÷7) - 5.
(4 - 7)] ║
[ - 10 - 2.
( 5 - 2 ) - 5.
(4 - 7)] ║
[ - 10 - 2.
3 - 5.
(4 - 7)] ║
[ - 10 - 2.
3 - 5.
- 3 ║ ║ - 12 3 - 8.
La respuesta a tu problema es 8.