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eddyvan
@eddyvan
June 2021
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bonjour voici le 2eme probleme
une personne a qui l on demandait son age a repondu :si je vis jusqu a 100 ans,il me reste encore a vivre les 3/2 de l age que j'ai.quel est l'age de cette personne?
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Thomas1106
Soit x : l'âge recherché
x+(3/2)x = 100
x+3x/2 = 100
2x/2 + 3x/2 = 100
5x/2 = 100
5x = 100*2
5x = 200
x = 200/5
x = 40
La personne à 40 ans
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x+(3/2)x = 100
x+3x/2 = 100
2x/2 + 3x/2 = 100
5x/2 = 100
5x = 100*2
5x = 200
x = 200/5
x = 40
La personne à 40 ans