Question

AYUDAAAAAA POR FAVOR ME SALVARIA LA VIDA
a) 8 - { -13 + [ -5 - ( -8 +7-6 ) -13 ] +6 }-5
b) 7 -5 a + { -7 a - [ 8 – 9 a - ( 6 a – 9 ) – 13 a ] - 11 }
c) - 15m - { - 10k + [ 8m – 15k + 17m – ( 7k – 10m + 17m ) – 5k ] + 12m } +8k
DESTRUIR SIGNOS DE AGRUPACION

Answer 1

Respuesta:

a) 8-{-13+[-5-(8+7-6)-13]+6}-5

8-{-13+[-5-(-7)-13]+6}-5

8-{-13+[-5+7-13]+6}-5

8-{-13+[-11]+6}-5

8-{-13-11+6}-5

8-{-18}-5

8+18-5

21

b) 7-5a+{-7a-[8-9a-(6a-9)-13a]-11}

7-5a+{-7a-[8-9a-6a+9-13a]-11}

7-5a+{-7a-[17-28a]-11}

7-5a+{21a-28}

7-5a+21a-28

-21+16a

c)-15m-{-10k+[8m-15k+17m-(7k-10m+17m)-5k]+12m}+8k

-15m+10k-[8m-15k+17m-(7k-10m+17m)-5k]-12m+8k

-27m+18k-[8m-15k+17m-7k+10m-17m-5k]

-27m+18k-8m+15k-17m+7k-10m+17m+5k

-45m+18k+15k+7k+5k

-45m+45k

-45(m-k)