Question

Alguém me ajuda a responder essas somas aritméticas?

a) -16-[4+(8-1)-(14-15]=
b) -10-{8-[6-(4-2)]=
c) -40-[8+1[1-(3+17)+(12-9)]-5=
d) 18-(-8+31)+[-7-[-4+(8+1)-(16-3+7)+2]-4=

Answer 1

a) -16 - [4+(8-1)-(14-15)]=
-16-[4+7-(-1)]
-16-[4+7+1]
-16-[4+8]
-16-[12]
-16-12 = -28

b) -10-{8-[6-(4-2)]}
-10-{8-[6-2]}
-10-{8-4}
-10-4 = -14

c) -40-{8+1[1-(3+17)+(12-9)]}-5
-40-(8+1(1-20+3-5)
-40-(8+1(4-25)
-40-(8+1-21)
-40-(-12)
-40+12 = -28

d)18-(-8+31)+[-7-[-4+(8+1)-(16-3+7)+2]-4
18-(-8+31)+(-7-(-4+9-20+2)-4
18-(-8+31)+(-7-(-24+11)-4
18-23+(-7+13-4)
18-23+2
20-23 = -3