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Sagot :

1.

A = -3 -2 + 6 + 11 = 12
B = -4 +8 -12 +9 = 1
C = -18 +9 -5 -9 = -23
D = -12 +6 -2 + 20 = 12

A=D

2.

A= -8 +3 + 4 +5 = 4
B = -4 + 8 +3 +2 -5 = 4
C = -12 + 8 + 8 = 4
D = -15 + 3 - 12 + 21 = 7

D n’est pas égal aux autres

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