Question

[ 4 – ( 1 – 5 ) + 3] – [ -8 +( 2 – 7 ) +12]

Answer 1

Resposta:

[4-(-4)+3] - [ -8+(-5)+12]=

[4+4+3] - [ -8-5+12]=

[ 11] - [ -13+12]=

[11] - [ -1]=

11+1= 12

Answer 2

Resposta:

12

Explicação passo -a-passo: [ 4 – ( 1 – 5 ) + 3] – [ -8 +( 2 – 7 ) +12]

[4 - ( - 4 ) + 3 ] - [ -8 + ( - 5) +12]

[8 +3 ] - [ -13 +12 ]

11 - ( -1)

12