Question

1. – {3 - [2 + (5 – 8) – (7 + 6)]} =
2) 7 – {- [12 – (9 + 3) + 5]} =
3) 3 – {- [5 – (9 – 2) + (9 – 11)]} =
4) - 5 – {9 – [2 + (7 – 3) – 6]} =
5) 3 + {7 – [5 – (2 + 5) – 7]} =

Answer 1

Respuesta:

1) – {3 - [2 + (5 – 8) – (7 + 6)]} =

– {3 - [2   - 3 – 13 ]} =

– {3 + 14 } =

– {17} =

– 17 =

2) 7 – {- [12 – (9 + 3) + 5]} =

7 – {- [12 – 12 + 5]} =

7 – {- [0 + 5]} =

7 – {- 5} =

7 +  5 =

12

3) 3 – {- [5 – (9 – 2) + (9 – 11)]} =

3 – {- [5 – 7 - 2 ]} =

3 – {- [ -2 - 2 ]} =

3 – {- [ -4 ]} =

3 – {4} =

3 – 4=

-1

4) - 5 – {9 – [2 + (7 – 3) – 6]} =

- 5 – {9 – [2 + 4 – 6]} =

- 5 – {9 – [6 – 6]} =

- 5 – {9 – [0]} =

- 5 – {9 – 0} =

- 5 – {9} =

- 5 – 9 =

-14

5) 3 + {7 – [5 – (2 + 5) – 7]} =

3 + {7 – [5 – 7 – 7]} =

3 + {7 – [-9]} =

3 + {7 +9} =

3 + {16} =

3 + 16 =

19

Coronita pliss :)