Question

1)Calcule o valor das expressões numéricas: A) (-5+9) + [ -4 + (5 - 2 + 6) - 9] - (1 - 7) = B) -20 + { -5 +[( -12 + 30) + ( -4 -7)]} = C) -4 + (5-6) +5 - [ 3 - (2 -3) + 4] + 8 - 9 = D) - 18 + { -2 - [ 10 -4 + (- 1 - 5) + 11]} - 6 = E) 13 - [ -1 - ( 5 - 6 - 7 )] -2 + [ -3 - (4 - 6 ) ] + 2 = F) - { 7 + 11 - [( - 5 + 11) - 8]} + [ -10 - (2 - 17) ] =

Answer 1

Resposta:

RESPOSTA NO EXPLICAÇÃO PASSO-A-PASSO

Explicação passo-a-passo:

A)

$( - 5 + 9) + ( - 4 + (5 - 2 + 6) - 9) - (1 - 7)$

$4 + ( - 4 + (5 - 2 + 6) - 9) - (1 - 7)$

$4 + ( - 4 + 9 - 9) - (1 - 7)$

$4 + ( - 4 + 9 - 9) - ( - 6)$

$4 - 4 - ( - 6)$

$4 - 4 + 6$

$6$

B)

$- 20 + ( - 5 + (( - 12 + 30) + ( - 4 - 7)))$

$- 20 + ( - 5 + (18 + ( - 4 - 7)))$

$- 20 + ( - 5 + (18 + ( - 11)))$

$- 20 + ( - 5 + (18 - 11))$

$- 20 + ( - 5 + 7)$

$- 20 + 2$

$- 18$

C)

$- 4 + (5 - 6) + 5 - (3 - (2 - 3) + 4) + 8 - 9$

$- 4 + ( - 1) + 5 - (3 - (2 - 3) + 4) + 8 - 9$

$- 4 + ( - 1) + 5 - ( - 3( - 1) + 4) + 8 - 9$

$- 4 - 1 + 5 - (3 - ( - 1) + 4) + 8 - 9$

$- 4 - 1 + 5 - (3 + 1 + 4) + 8 - 9$

$- 4 - 1 + 5 - 8 + 8 - 9$

$- 4 - 1 + 5 - 9$

$- 9$

D)

$- 18 + ( - 2 - (10 - 4 + ( - 1 - 5) + 11)) - 6$

$- 18 + ( - 2 - (10 - 4 + ( - 6) + 11)) - 6$

$- 18 + ( - 2 - (10 - 4 - 6 + 11)) - 6$

$- 18 + ( - 2 - 11) - 6$

$- 18 + ( - 13) - 6$

$- 18 - 13 - 6$

$- 37$

E)

$13 - ( - 1 - (5 - 6 - 7)) - 2 + ( - 3 - (4 - 6)) + 2$

$13 - ( - 1 - (5 - 6 - 7)) + ( - 3 - ( 4 - 6))$

$13 - ( - 1 - ( - 8)) + ( - 3 - (4 - 6))$

$13 - ( - 1 - ( - 8)) + ( - 3 - ( - 2))$

$13 - ( - 1 + 8) + ( - 3 - ( - 2))$

$13 - ( - 1 + 8) + ( - 3 + 2)$

$13 - 7 + ( - 3 + 2)$

$13 - 7 + ( - 1)$

$13 - 7 - 1$

$5$

F)

$- (7 + 11 - (( - 5 + 11) - 8)) + ( - 10 - (2 - 17)$

$- (7 + 11 - (6 - 8)) + ( - 10 - (2 - 17))$

$- (7 + 11 - (6 - 8)) + ( - 10 - ( - 15))$

$- (7 + 11 - ( - 2)) + ( - 10 - ( - 15))$

$- (7 + 11 - ( - 2)) + ( - 10 + 15)$

$- (7 + 11 + 2) + ( - 10 + 15)$

$- (7 + 11 + 2) + 5$

$- 20 + 5$

$- 15$

Espero ter ajudado :)

Bons estudos!