Question

Eliminando os parênteses e colchetes determine o valor de:

A 30+[-16-(-7+10)]
B -10-[11+(-10-6)+1]
C 18-(14+15)-[13-(16-21)]
D -(-22)-[29+(27-23-26)-28]
E 9-(-10)-[-21-(-13-13+25)]-(-18)
F 11+[-17-(-22+16)+(-29)]-(46+54)

Answer 1

A= 30+[-16-(-7+10)]
= 30+[-16- 3]
=30-19
=11

B= -10-[11+(-10-6)+1]
=-10-[11-16+1]
=-10-3
=-13

Answer 2

A= 30+(-16 - 3)
30 - 18 = 12
B= -10 ( 11 -16 +1)
-10 - 4= -14
C= 18 - (14+ 15)- ( 13 +5)
18 - 29 - 18 = -29
D= - (-22)- (29 -22 -28)
22+21= 43
E= 9-(-10)- ( -21 +1 ) - (-18)
9+10 + 20 +18= 57
F=11+(-17 +6 -29) - (46 + 54)
11 -40 -100= - 129