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Sagot :

Réponse :

Explications étape par étape

View image MITCHALEXANDRINE2314
View image MITCHALEXANDRINE2314

Bonsoir

A = 2 + (- 8) + 7 + (- 12) + (- 5) + 4 + (- 2)

A = 2 - 8 + 7 - 12 - 5 + 4 - 2

A = 2 - 2 + 7 + 4 - 8 - 12 - 5

A = 11 - 25

A = - 14

B = (- 5) + (- 4) - 15 - (- 6) + 7

B = - 5 - 4 - 15 + 6 + 7

B = - 24 + 13

B = - 11

C = (- 14) - 14 + 30 + (- 15) - (- 20)

C = - 14 - 14 + 30 - 15 + 20

C = - 14 - 14 - 15 + 30 + 20

C = - 43 + 50

C = 7

D = (- 4) + (- 3) - 5 - 3 + (- 2)

D = - 4 - 3 - 5 - 3 - 2

D = - 17

E = 3 - 12 + 15 - 17 - 23

E = 3 + 15 - 12 - 17 - 23

E = 18 - 52

E = - 34.

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