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cestrela7 [59]
2 years ago
14

Sara sold half her comic books and then brought 9 more.She now has 15.

Mathematics
1 answer:
Andrew [12]2 years ago
5 0
_6
(15-9)×2=12, she began with 12 comic books, X=12
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Répondre:

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Explication étape par étape:

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Nous devons trouver l'ensemble de solutions

5r + 9> 10r - 126

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