Bonsoir tout le monde j'ai un devoir maison et je ne comprends pas du tout comment faire cette équation : 4(x-7) =5-(7-x)

By: USER8429
27 Agustus 2025 mathematiques 5 minutes
4.5
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Question

Grade: Education Subject: mathematiques

Bonsoir tout le monde j'ai un devoir maison et je ne comprends pas du tout comment faire cette équation : 4(x-7) =5-(7-x)

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Answer (128)

Best Answer
(251)

Bonsoir,

 

Distribue tout d'abord afin d'enlever les paranthèses.

Donc cela te donnera :

4x - 28 = 35 - 5x

9x = 63

x = 63/9

x = 7

 

En espérant avoir pu t'aider ;)

 

 

Answered on 27 Agustus 2025
(66)

4x-28=5-7+x en enlevant les () donc 3x=24 soit x=8

 

Answered on 27 Agustus 2025

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Bonjour,
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