Question

elimine os parênteses, os colchetes e as Chaves e efetue as operações

a) -[5+(3-6)]-(9-13)

b) 4-[2-(6+7)]-(7+9-3)

c) -[(11-12)-(-7+9)]-[(3-6)+14]

d) 2-[(4-7)+1]-3

e) -{-[7-(2+5+7)]+11}+13

f) {-(4-3)+[10-(31-27)]+3}

quero as contas montadas
obrigada ​

Answer 1

Resposta:

a) +2

b) 2

c) -8

d) 1

e) -5

f) +8

Explicação passo a passo:

a) -[5+(3-6)]-(9-13)

 -[5+(-3)]-(-4)

 -[5-3]+4

 -[2]+4

 -2+4

 +2

b) 4-[2-(6+7)]-(7+9-3)

 4-[2-(13)]-(+13)

 4-[2-13] -13

 4-[-11]-13

 4+11-13

 15-13

 2

c) -[(11-12)-(-7+9)]-[(3-6)+14]

 -[(-1)-(+2)]-[(-3)+14

 -[-1-2]-[-3+14]

 -[-3]-[+11]

 +3-11

 -8

d) 2-[(4-7)+1]-3

 2-[-3+1]-3

 2-[-2]-3

 2+2-3

 4-3

 1

e) -{-[7-(2+5+7)]+11}+13

 -{-7-(+14)]+11}+13

 -{-[7-14]+11}+13

 -{-[-7]+11}+13

 -{+7+11}+13

 -{+18}+13

 -18+13

 -5

f) {-(4-3)+[10-(31-27)]+3}

 {-(+1)+[10-(+4)]+3}

 {-1+[10-4]+3}

 {-1+6+3}

 +8