determiner a 5a+4=3a+5 2a-5+7a+=3(a+1)
Mathématiques
celialatina
Question
determiner a 5a+4=3a+5 2a-5+7a+=3(a+1)
1 Réponse
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1. Réponse Anonyme
5a + 4 = 3a + 5
5a - 3a = 5 - 4
2a = 1
a = 1/2
2a - 5 + 7a = 3(a + 1)
9a - 5 = 3a + 1
9a - 3a = 1 + 5
6a = 6
a = 6/6
a = 1