Réponse :
bonsoir
A = - 12 + ( - 15 ) = 12 - 15 = - 3
B = ( - 45 ) + ( 41) = - 45 + 41 = - 4
C = ( 32 ) + ( - 27 ) = 32 - 27 = 5
D = ( - 2.6 ) + ( - 2.7) = - 2.6 - 2.7 = - 5.3
E = ( - 1.4 ) + ( 2.3 ) = - 1.4 + 2.3 = 0.9
Explications étape par étape :
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Réponse :
bonsoir
A = - 12 + ( - 15 ) = 12 - 15 = - 3
B = ( - 45 ) + ( 41) = - 45 + 41 = - 4
C = ( 32 ) + ( - 27 ) = 32 - 27 = 5
D = ( - 2.6 ) + ( - 2.7) = - 2.6 - 2.7 = - 5.3
E = ( - 1.4 ) + ( 2.3 ) = - 1.4 + 2.3 = 0.9
Explications étape par étape :