Question

. 4 – [–6 – (–2 + 9 – 4) – 7] + 6 b. (–8 + 7) + [–3 + (–5 – 6)] + (–2 – 4) c. –10 – 4 – [–10 + 16 – ( 3 + 2 – 5) + 3 – 2] d. [–8 – 10 – (–3 + 15 – 2) + (–8 – 13)] + 2 k. {– [– (15 + 10) + (–20)]} + {5 + [(–20 + 5)]} l. (36 – 24) + { – [4 + (–1 – 6) – 7] – 50} – 18

Answer 1

Respuesta:

a. 26  

b. ( –21 )

c. ( –21 )

d. ( –47 )

k.  35

l. ( -46 )

Explicación paso a paso:

a. 4 – [–6 – (–2 + 9 – 4) – 7] + 6

   4 – [–6 – ( 7 - 4) – 7] + 6

    4 – [–6 – 3 – 7] + 6

    4 – [ -9 - 7] + 6

   4 – –16 + 6

   4 + 16 + 6

   20 + 6 = 26  

b. (–8 + 7) + [–3 + (–5 – 6)] + (–2 – 4)

    – 1 + [–3 + (–5 – 6)] + (–2 – 4)

     – 1 + [–3 + –11 ] + (–2 – 4)

     – 1 + [–3 + –11 ] + –6

     – 1 + [–3 – 11 ] – 6

      – 1 +  –14 – 6

      – 1 – 14 – 6

     – 15 – 6 = ( –21 )

c. –10 – 4 – [–10 + 16 – ( 3 + 2 – 5) + 3 – 2]

  –10 – 4 – [–10 + 16 –  (5 – 5) + 3 – 2]

  –10 – 4 – [–10 + 16 – 0 + 3 – 2]

  –10 – 4 – [6 – 0 + 3 – 2]

  –10 – 4 – [6 + 3 – 2]

   –10 – 4 – [ 9 – 2]

    –10 – 4 – 7

    –14 –7 =   (–21 )

d. [–8 – 10 – (–3 + 15 – 2) + (–8 – 13)] + 2

   [–8 – 10 – ( 12– 2) + (–8 – 13)] + 2

   [–8 – 10 – 10 + (–8 – 13)] + 2

   [–8 – 10 – 10 + – 21 ] + 2

   [– 18  – 10 + – 21 ] + 2

   [– 28 + – 21 ] + 2

   [– 28 – 21 ] + 2

   –49 + 2 = ( –47 )

k. {– [– (15 + 10) + (–20)]} + {5 + [(–20 + 5)]}

   {– [– 25+ (–20)]} + {5 + [(–20 + 5)]}

   {– [– 25+ (–20)]} + {5 +  (– 15 }

   {– [– 25 – 20]} + {5 +  (– 15 }

   {– –45} + {5 +  (– 15 }

  + 45 + {5 - 15}

   + 45 + -10

     45 - 10 = 35

l. (36 – 24) + { – [4 + (–1 – 6) – 7] – 50} – 18

  12 + { – [4 + (–1 – 6) – 7] – 50} – 18

  12 + { – [4 + (– 7 ) – 7] – 50} – 18

  12 + { – [ - 3 – 7] – 50} – 18

  12 + { – -10 – 50} – 18

  12 + { +10 – 50} – 18

  12 + - 40 – 18

  12 - 40 - 18

  -28 - 18 = - 46

espero te ayude :3