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Exstaz
@Exstaz
May 2019
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Bonjour, j'ai un probleme de math .. Merci de m'aider
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Christine17
31 caisses = 561 kg
15X+23Y=561
X+Y=31 soit X=31-Y
15(31-Y)+23Y=561
465+8Y=561
8Y=96
Y=12
X=19
il y a 19 caisses de 15 kg et 12 caisses de 23 kg
vérification :
19x15+12x23=285+276=561
2 votes
Thanks 1
Exstaz
Merci t'es la meilleur <3
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Lista de comentários
15X+23Y=561
X+Y=31 soit X=31-Y
15(31-Y)+23Y=561
465+8Y=561
8Y=96
Y=12
X=19
il y a 19 caisses de 15 kg et 12 caisses de 23 kg
vérification :
19x15+12x23=285+276=561