Question

3-{-5[8-2+(5-9)]} ? -10-{-2+[+1-(-3-5)+3]} ? {2+[1+(-15-15-2]}? {30 +[10-5+(-2-3]-18-12}
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Answer 1

3-

{-5[8 - 2+(5 - 9)]} =

{-5[6+(-4)]}

{-5[6 - 4]}

{-5 + 2}

-3

-10 - {-2 +[1 -(-3 - 5)+3]} =

-10 - {-2 +[1 -(-8)+3]}

-10 - {-2 +[1 + 8 +3]}

-10 - {-2 +[9 +3]}

-10 - {-2 + 12}

-10 - 10

20

{2+ [1 + (-15 -15 -2)]} =

{2+ [1 + (-30 - 2)]}

{2+ [1 + (-32)]}

{2+ [1 -32]}

{2+ [-3]}

{2 - 3}

-1

{30 +[10 - 5 + (-2 - 3)]-18 - 12} =

{30 +[5 + (-5)]-30}

{30 +[5 - 5]-30}

{30 - 30}

0

Answer 2

Resposta:

13

-20

-29

0

Explicação passo-a-passo:

3-{-5 [8-2+(5-9)]}

3-{-5 [8-2+(-4)]}

3-{-5 [8-2-4]}

3-{-5×2}

3-{-10}

3+10

= 13

-10-{-2+[+1-(-3-5)+3]}

-10-{-2+[1-(-8)+]}

-10-{-2+[1+8+3]}

-10-{-2+12}

-10-10

= -20

{2+[1+(-15-15-2]}

2+[1+(-32]}

2+[1-32]

2+[-31]

2-31

= -29

{30+[10-5+(-2-3]-18-12}

30+[10-5+(-5]-18-12}

30+[10-5-5-18-12}

30+[-30}

= 0

Espero ter ajudado:)