April 2019 1 51 Report
Résoudre par la méthode la plus judicieuse chacun des systèmes.
a)
3x- 2y=13
x+7y =12
b)
5x-3y=9
2x+7y=8
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Bonjour ! help me ! svp ! :D
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Bonjour j'ai un exercice que je ne comprends pas, pourriez vous m'aider svp. Merci.
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Trouve la question qui a pu provoquer chaque reponse . Utilise ever ou yet.1 : .......................................................................................................No , I haven't brushed them yet.2 : .......................................................................................................Yes , I've read it.3 : ......................................................................................................No , she has never taken it.4 : ......................................................................................................Yes , I've already learnt it.5 : ......................................................................................................No, he has never drunk any.6 : .....................................................................................................No , they haven't met him yet.
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