Question

Preciso para amanhã!!
A)(-5)+(+2)-(-1)+(-7)=
B)(+2)-(-3)+(-5)-(-9)=
C)(-2)+(-1)-(-7)+(-4)=
D)15+(3-2)+(7-4)=
E)-10-{-2+[+1-(-3-5)+3] }=
F)+1-6=
G)-9+4=
H)-3+6=
I)+15-6=
J)-14+21=
K)-31+30=
L)-18+8=

Answer 1

Resposta:

A -11

B +9

C 0

D 19

E -20

F -5

G -5

H +3

I +9

J +7

K 0

L -10

Explicação passo-a-passo:

A -5+2 +1 -7 = -3+1-7 = -4-7 = -11

B +2+3-5+9= +14-5 = +9

C -2-1+7-4 = -7+7 = 0

D 15+1+3 = 19

E -10-(-2+(+1+8)+3 = -10-(-2+(12) = -10-(-2+12) = -10+2-12 = -22+2 = -20

F -5

G -5

H +3

I +9

J +7

K 0

L -10