Question

7. (-7) - [1 + 7 + 9]
8. [7- 8 ] – [ 7 – (-8)]
9.8 – 7 [4 + 8 – (-6)]
10. (-1) – [-3 + 7] -8
11. [ (-6) - 5 + (-4)]
12. [11 -7] – [12 – 9]

Answer 1

Respuesta:

7. (-7) - [1 + 7 + 9]  353.-3

8. [7- 8 ] – [ 7 – (-8)] 36537-74,00

9.8 – 7 [4 + 8 – (-6)] 73647.e83

10. (-1) – [-3 + 7] -8 .8374

11. [ (-6) - 5 + (-4)] -37-.84

12. [11 -7] – [12 – 9]-8445.-7

Explicación paso a paso:

espero ayudar :D