Question

Resolva:

a) (+3) + (– 2) + (– 5) =

b) (– 2)– (+1)– (+5) =

c) (+4) + (– 2)– (+3) =

d) (+5)– (– 3)– (– 1) =

e) (+4) + (– 6)– (+7)– (– 6) + (+7) =

f) (– 3 )– (– 5 ) + (– 6) + (+8)– (– 4) =

g) + (– 3 + 8)– (– 3 + 8) + (5– 6) =

h) −(−3 − 1) − (−6 + 4 − 1) − 6 − (−3 + 2) =

i) 18 − (−5 − 2 − 3) + 20 − (−6 + 8) − (−1 − 8 + 3) =

j) −32 − 1 − (−12 + 14 + 7) + (−5 − 6 − 9 + 3 ) − 17 =​

Answer 1

Explicação passo-a-passo:

$( + 3) + ( - 2) + ( - 5) = - 4$

$( - 2) - ( + 1) - ( + 5) = - 8$

$( + 4) + ( - 2) - ( + 3) = - 1$

$( + 5) - ( - 3) - ( - 1) = 9$

$( + 4) + ( - 6) - ( + 7) - ( - 6) + ( + 7) = 4$

$( - 3) - ( - 5) + ( - 6) + ( + 8) - ( - 4) = 8$

$+ ( - 3 + 8) - ( - 3 + 8) + (5 - 6) = - 1$

$- ( - 3 - 1) - ( - 6 + 4 - 1) - 6 - ( - 3 + 2) = - 4 - ( - 3) - 6 - ( - 1) = - 1 - 6 + 1 = - 6$

$18 - ( - 5 - 2 - 3) + 20 - ( - 6 + 8) - ( - 1 - 8 + 3) = 18 - ( - 10) + 20 - (2) - ( - 6) = 28 + 18 + 6 = 52$

$- 32 - 1 - ( - 12 + 14 + 7) + ( - 5 - 6 - 9 + 3) - 17 = - 33 - (9) + ( - 17) - 17 = - 42 - 34 = - 76$