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etienne26
@etienne26
January 2021
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Merci de vote aide niveau 3 eme ✋
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winner123
Verified answer
Bonsoir
a) - 2 ( 2 x - 4) = 6 x - ( - 3 + x)
- 4 x + 8 = 6 x + 3 - x
- 4 x - 6 x + x = 3 - 8
- 9 x = - 5
x = 5/9
b) 4 x - 2 + 5 x - 1 = - 21 + 3 x
4 x + 5 x - 3 x = - 21 + 2 + 1
6 x = - 18
x = - 18/6 =
- 3
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Quelqu'un peut m'aider pour cet exercice merci :) niveau 3 eme
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Besoin d'aide niveau 3 eme merci
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Verified answer
Bonsoira) - 2 ( 2 x - 4) = 6 x - ( - 3 + x)
- 4 x + 8 = 6 x + 3 - x
- 4 x - 6 x + x = 3 - 8
- 9 x = - 5
x = 5/9
b) 4 x - 2 + 5 x - 1 = - 21 + 3 x
4 x + 5 x - 3 x = - 21 + 2 + 1
6 x = - 18
x = - 18/6 = - 3