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slt je suis completement bloce avk cet exo aidez moi svp:
Calculer a – b si
1) a = –6 et b = +3 3) a = –5 et b = +8 5) a = +3 et b = –7
2) a = +7 et b = –5 4) a = –7 et b = –5 6) a = –8 et b = –10

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