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Sagot :

Bonsoir

A = - 17 + 12 - 13 + 17 - 10

A = - 17 + 17 + 12 - 13 - 10

A = + 12 - 23

A = - 11

B = 14 - 18 - 12 + 6 - 15

B = 14 + 6 - 18 - 12 - 15

B = 20 - 45

B = - 25

C = - 28 + 19 - 12 + 21 + 17

C = - 28 - 12 + 19 + 21 + 17

C = - 40 + 40 + 17

C = 17

D = - 42 + 18 - 21 + 16 + 21 (j'imagine que c'est 21 ... pj coupée)

D = - 42 - 21 + 21 + 18 + 16

D = - 42 + 24

D = - 18

E = - 3 - 12 + 13 - 6 - 7

E = - 15 + 13 - 13

E = - 15.

Réponse :

Explications étape par étape

Bonsoir

A = -17 + 12 - 13 + 17 - 10

A = -17 + 17 + 12 - 13 - 10

A = 12 - 23

A = (-11)

B = 14 - 18 - 12 + 6 - 15

B = 14 + 6 - 18 - 12 - 15

B = 20 - 45

B = -25

C = -28 + 19 - 12 + 21 + 17

C = -28 - 12 + 19 + 21 + 17

C = -40 + 57

C = 17

D = -42 + 18 - 21 + 16 + 2? (Je pars sur + 2)

D = -42 - 21 + 18 + 16 + 2

D = -63 + 36

D = -27

E = - 3 - 12 + 13 - 6 - 7

E = -3 - 12 - 6 - 7 + 13

E = -15 - 13 + 13

E = -15

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