MELINASURESH
Answered

Bonsoir ,j aurai besoin d’aide sur cette exercice :6 Calculer chaque expression.
ain
A=-7+3 - 4 + 2 =..
B = -(3 - 8 + 2) = .....
C = (-3) + (-7 - 2) = .....
D=-(4 - 3) + 8 =
E = 9- (7 - (2 + 4))
F= - (- (5 + 7)) =
Merci à ceux qui répondent ☺️

Sagot :

MITCHALEXANDRINE2314

A=-7+3 - 4 + 2

=-4-4+2

=-8+2

=-6

B = -(3 - 8 + 2)

=-3+8-2

=-5+8

=+3

C = (-3) + (-7 - 2)

=-3 -9

=-12

D=-(4 - 3) + 8

=(-4+3)+8

=-1+8

=+7

E = 9- (7 - (2 + 4))

=9-(7-2-4)

=9-(5-4)

=9-(+1)

=9-1

=8

F= - (- (5 + 7))

=-(-5-7)

=-(-12)

=+12

BILALBH

Réponse:

A = -6

B = 3

C = -12

D = 7

E = 8

F = 12

Explications étape par étape:

A = Pas besoins d'étape

B = - ( 3 - 8 + 2 ) = - 3 + 8 - 2 = 3

C = ( - 3 ) + ( - 7 - 2 ) = - 3 - 7 - 2 = - 12

D = -(4 - 3) + 8 = - 4 + 3 + 8 = 7

E = 9- (7 - (2 + 4)) = 9 - 7 + ( 2 + 4 ) = 9 - 7 + 2 + 4 = 8

F = - (- (5 + 7)) = + ( 5 + 7 ) = + 5 + 7 = 12