Question

Suma y resta con paréntesis y corchetes

{ [3 + 2 - (9 - 7) + (3 + 4) ] } =

- [3 + 4 + [4 + 7] + 4 - 9] =

- {45 - 28 - (3 - 9) + (2 + 3) }

15 - { 4 + [ - 5 - 4 + ( 2 - 3 ) ] - 16 } =

- 4 + 5 - { 3 + 4 - 5 - [ 7 + ( 6 + 4 ) - 7 - 6 ] + 4 } =

2 - 4 - (- 2 - 3) - {2 - [- 2 - ( - 2 + 3)] - 1} + 2 =

3 - [2 + 4 - (2 - 7) + 1] - [2 - (4 + 7 - 1) - 2] =

-2 - 7 - [-3 + 1 - (1 + 2 - 3) + 1] - [-7 + 4 - (2 + 5)] =

[-9 - 11 - (-18 + 21 - 3) + 7] - [-18 + 21 - (3 - 11 + 15)] =​

Answer 1

(3+2-2+7)
(5-2+7
3+7
10

-(3+4+11+4-9)
-(7+11+4-9)
-(18+4-9)
-(22-9)
-13

-(45-28-(-6)+5)
-(45-28+6+5)
-(17+6+5)
-(23+5)
-28

15-(4+(-5-4-1)-16)
15-(4-10-16)
15-(-22)
15+22
37

-4+5-(3+4-5-(7+10)-7-6)+4
-4+5-(3+4-5-17-7-6)+4
-4+5-(7-5-17-7-6)+4
-4+5-(2-17-7-6)+4
-4+5-(-15-7-6)+4
-4+5-(-22-6)+4
-4+5-(-28)+4
-4+5+28+4
1+28+4
29+4
33

2-4-(-5)-(2-(-2-1)-1)+2
2-4+5-(2+3-1)+2
2-4+5-4+2
-2+5-4+2
3-4+2
-1+2
1

3-(2+4-(-5)+1)-(2-10-2)
3-(2+4+5+1)-(2-10-2)
3-(6+5+1)-(-8-2)
3-(11+1)-(-10)
3-12+10
-9+10
1

-2-7-(-3+1-0+1)-(-7+4-7)
-2-7-(-2+1)-(-3-7)
-2-7-(-1)-(-10)
-2-7+1+10
-9+1+10
-8+10
2

(-9-11-(3-3)+7)-(-18+21-(-8+15)
(-9-11-0+7)-(-18+21-7)
(-20+7)-(3-7)
-13-(-4)
-13+4
-9