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Prancer32
@Prancer32
January 2021
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Bonjour quelqu'un pourrait m'aider pour résoudre l'exercice numéro 41? Mercii
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nini999
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Bonjour :
L'exercice :
41
a)
4(x + 2) = x - 1
4x + 8 = x - 1
4x - x = -1 - 8
3x = -9
x = -9/3
x = -3
b)
5x + 1 = (x - 1) + (2x - 4)
5x + 1 = x - 1 + 2x - 4
5x + 1 = x + 2x - 1 - 4
5x + 1 = 3x - 5
5x - 3x = -5 - 1
2x = -6
x = -6/2
x = -3
c)
3x - 1 - (1 + 2x) = 1
3x - 1 - 1 - 2x = 1
3x - 2 - 2x = 1
3x - 2x - 2 = 1
x = 1 + 2
x = 3
d)
x/3 + 1 = 0
x/3 = -1
x = -1 × 3
x= -3
à ton tour de conculer
J’espère t'avoir t'aider
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Thanks 2
nini999
Oui ;)
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bonjour vous pouvez m'aider pour les exercices 37 et 39
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Verified answer
Bonjour :L'exercice : 41
a)
4(x + 2) = x - 1
4x + 8 = x - 1
4x - x = -1 - 8
3x = -9
x = -9/3
x = -3
b)
5x + 1 = (x - 1) + (2x - 4)
5x + 1 = x - 1 + 2x - 4
5x + 1 = x + 2x - 1 - 4
5x + 1 = 3x - 5
5x - 3x = -5 - 1
2x = -6
x = -6/2
x = -3
c)
3x - 1 - (1 + 2x) = 1
3x - 1 - 1 - 2x = 1
3x - 2 - 2x = 1
3x - 2x - 2 = 1
x = 1 + 2
x = 3
d)
x/3 + 1 = 0
x/3 = -1
x = -1 × 3
x= -3
à ton tour de conculer
J’espère t'avoir t'aider