Question

1) utilizar la regla de los signos​

Answer 1

4) 1 - (5 - 3 + 2) - [5 - (6 - 3 + 1) - 2]
= 1 - (2 + 2) - [5 - (3 + 1) - 2]
= 1 - (4) - [5 - (4) - 2]
= 1 - 4 - [5 - 4 - 2]
= 1 - 4 - [1 - 2]
= 1 - 4 - [-1]
= 1 - 4 + 1
= -3 + 1
= -2

5) 9 : [6 : (-2)]
= 9 : [6 : -2]
= 9 : -3
= -3

6) 2 x [(-12 + 36) : 6+(8-5):(-3)]-6
= 2 x [24 : 6 + 3 : -3] - 6
= 2 x [4 + (-1)] - 6
= 2 x [4 - 1] - 6
= 2 x -3 - 6
= -6 - 6
= -12

7) 4-3x[-2+5-3x(-2x-3:3)-10:2+3]
= 4 - 3 x[-2 + 5 - 3 x(6 : 3) - 5 + 3]
= 4 - 3 x [-2 + 5 - 3 x 2 - 5 + 3]
= 4 - 3 x [-2 + 5 - 6 - 5 + 3]
= 4 - 3 x [(-2 - 6 - 5) + (5 + 3)]
= 4 - 3 x [-13 + 8]
= 4 - 3 x - 5
= 4 - (-15)
= 4 + 15
= 19

8) 6 + {4 - [(17 - (4x4)] + 3}-5
= 6 + {4 - [(17 - 16)] + 3} - 5
= 6 + {4 - [1 + 3] + 3} - 5
= 6 + {4 - 4 + 3} - 5
= 6 + 3 - 5
= 9 - 5
= 4

9) 4-[2x(3-5)-(5-2)x(-7+4:2)]
= 4 - [2 x -2 - (3) x (-7 + 2)]
= 4 - [-4 - 3 x -5]
= 4 - [-4 - (-15)]
= 4 - [-4 + 15]
= 4 - 11
= -7

10) 10:[(3-5)x(2-4)+10:(-3-2)]
= 10 : [-2 x -2 + 10 : -5]
= 10: [4 + (-2)]
= 10 : [4 - 2]
= 10 : 2
= 5

11) (7-5)x[3-2-4:2-3x(6-2-8:4)]
= 2 x [3 - 2 - 2 - 3 x (6 - 2 - 2)]
= 2 x [3 - 2 - 2 - 3 x (6 - 4)]
= 2 x [3 - 2 - 2 - 3 x 2]
= 2 x [3 - 2 - 2 - 6]
= 2 x [3 +(- 2 - 2 - 6)]
= 2 x [3 +(-10)]
= 2 x [3 - 10]
= 2 x -7
= -14

12) 8:(3-5)-2x[-3x(1-4)-6:(1-3)]
= 8 : -2 - 2 x [-3 x -3 - 6 : -2]
= 8 : -2 - 2 x [9 - (-3)]
= 8 : -2 - 2 x [9 + 3]
= 8 : -2 - 2 x 12
= -4 - 34
= -38