Question

2. Determine o valor de cada soma
algébrica:
a) 8 - (-6 + 10)
b) -10 + (6 - 4)
c) 2 + (2 + 5 – 7)
d) -5 + (2 – 4) – 17 – 1)
e) (-5 + 3) – (5 – 9) + (8 – 1) – 11​

Answer 1

Explicação passo-a-passo:

a) 8 - (-6 + 10)  = 8 + 6 - 10 = 14 - 10 = 4

b) -10 + (6 - 4)  = - 10 + 6 - 4 = - 14 + 6 = - 8

c) 2 + (2 + 5 – 7)  = 2 + 2 + 5 - 7 = 9 - 7 = 2

d) -5 + (2 – 4) – 17 – 1)  = - 5 + 2 - 4 - 17 - 1 = 2 - 27 = - 25

e) (-5 + 3) – (5 – 9) + (8 – 1) – 11 = - 5 + 3 - 5 + 9 + 8 - 1 - 11 = - 22 + 20 = - 2