Question

Actividad N°3: Suprimir paréntesis, cancelar los números opuestos y luego resolver
a) -(+5) -(-4)-( + 3 ) + ( + 5)-(-9)-(+ 8 ) =
b) -2-( + 2 - 7 + 8 ) + ( - 7+3)-(-5) =
c) + 8 - (- 6+ (-4 + 2) - 8-6] +( - 10 ) =
d) -[+5 - 9 - (-1 - 6+9) - 2 + 3] -7 =
e) + [- 12 + 5 – (+8 - 6)-(-7) +11] =​

Answer 1

a) -(+5) -(-4)-( + 3 ) + ( + 5)-(-9)-(+ 8 )

-5 +4 -3 +5 +9 -8

-16 + 18

2 R//

b) -2-( + 2 - 7 + 8 ) + ( - 7+3)-(-5) =

-2 -2 +7 -8 -7 +3 +5

-19+15

-4 R //

c) + 8 - (- 6+ (-4 + 2) - 8-6] +( - 10 ) =

+8-[-6-4+2-8-6]-10

+8+6+4-2+8+6-10

+32-12

+20 R//

d) -[+5 - 9 - (-1 - 6+9) - 2 + 3] -7 =

-[+5 -9 +1 +6 -9 -2+3]-7

-5 +9-1-6+9+2-3-7

-22 + 20

-2 R//

e) + [- 12 + 5 – (+8 - 6)-(-7) +11] 1=

+[-12+5-8+6+7+11]

-12+5-8+6+7+11

-20+29

9 R//