BONJOUR J AI VRAIMENT BESOINS D AIDE MERCI D AVANCE A CEUX QUI M AIDERONS

CONSIGNES: RÉSOUDRE LES ÉQUATIONS D INCONNUE a SUIVANTES:

a.7a-6=9a-11

merci d avance a ceut qui maideront

By: USER6162
26 Agustus 2025 mathematiques 5 minutes
4.5
218 views 218 comments 13 shares

Question

Grade: Education Subject: mathematiques
BONJOUR J AI VRAIMENT BESOINS D AIDE MERCI D AVANCE A CEUX QUI M AIDERONS

CONSIGNES: RÉSOUDRE LES ÉQUATIONS D INCONNUE a SUIVANTES:

a.7a-6=9a-11

merci d avance a ceut qui maideront
Asked by:
218 Viewed 218 Answers

Answer (218)

Best Answer
(186)

Réponse :

Bonsoir

Explications étape par étape

7a -6 = 9a -11

7a -9a = +6 -11

-2a = -5

a = -5/-2 = 5/2

Answered on 26 Agustus 2025
(267)

Réponse :

bonsoir

mets les a du même côté et les chiffres de l'autre en faisant attention aux signes :

7a-6=9a-11

7a-9a=-11+6

-2a=-5

a=-5/-2=5/2=2.5

Explications étape par étape

Answered on 26 Agustus 2025

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