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bonjour, pouvez-vous m'aider svp
A = 5,26 ─ (─4,78) ─ (+7,49)
A = ...................................
B = ─10,78 + (─4,7) ─ (─13,21)
B = ...................................
C = (─12,4) ─ [(─7,14) ─ (+14,7)]
C = ...................................
D = [(─12,4) ─ (─7,14)] ─ (+14,7)
D = ...................................

Sagot :

VINS

Réponse :

bonjour

A = 5.6 + 4.78 - 7.49 = 2.89

B = - 10.78 - 4.7 + 13.21 = - 2.27

C = - 12.4 - ( - 7.14 - 14.7 ) = - 12.4 - ( - 21.84) = - 12.4 + 21.84 =  9.44

D = ( - 12.4 + 7.14 ) - 14.7 =  - 5.26 - 14.7 = - 19.96

Explications étape par étape :

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