Question

a)9- (-12 +8 -1) - (+4 - (-6+4+7) -2]

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

c)+6-(+10 -5 - (+3-14) - 8 + 11] + 3

d) +13 - (+5 - (+18 + 5) - 9] + 2

e) +(-9) + [+(+8)-(-4) + (-5)]

f)+8-(-4) + (+2 - (+3-7)]

g) +(+11) - [(+4) - (+7 - 13)-(+9)]

h) +[(+7) -(-6)]-[+(-5) - (-3)]

porfavor ayúdeme ya quiero descansar de tanta tarea :( ​

Answer 1

9- (-12 +8 -1) - (+4 - (-6+4+7) -2]

=9−(−4−1)−(4−(−6+4+7)−2)

=9−(−5)−(4−(−6+4+7)−2)

=14−(4−(−6+4+7)−2)

=14−(4−(−2+7)−2)

=14−(4−5−2)

=14−(−1−2)

=14−(−3)

=17

+5 - (-2 +7 +3) - [+5 -(8-2+4) -6]

=5−(5+3)−(5−(8−2+4)−6)

=5−8−(5−(8−2+4)−6)

=−3−(5−(8−2+4)−6)

=−3−(5−(6+4)−6)

=−3−(5−10−6)

=−3−(−5−6)

=−3−(−11)

=8

+6-(+10 -5 - (+3-14) - 8 + 11] + 3

=6−(5−(3−14)−8+11)+3

=6−(5−(−11)−8+11)+3

=6−(16−8+11)+3

=6−(8+11)+3

=6−19+3

=−13+3

=−10

+13 - (+5 - (+18 + 5) - 9] + 2

=13−(5−23−9)+2

=13−(−18−9)+2

=13−(−27)+2

=40+2

=42

+(-9) + [+(+8)-(-4) + (-5)]=

−9+12−5

=−9+7

=−2

8-(-4) + (+2 - (+3-7)]

=12+2−(3−7)

=12+2−(−4)

=12+6

=18

(+11) - [(+4) - (+7 - 13)-(+9)]

=11−(4−(−6)−9)

=11−(10−9)

=11−1

=10

[(+7) -(-6)]-[+(-5) - (-3)]

=13−(−5−(−3))

=13−(−2)

=15