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Louise93
@Louise93
May 2019
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Bonjour, pouvez m'aider s'il vous plaît?
Ça fait 2 heures que je cherche.
Merci, c'est les équations.
Résoudre les équations suivantes.
a) x-5=3
b) -1=4+x
c) -5x=0
d) 5-x=8
e) 3x+7=18
f) x-1/8=2/7
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inequation
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Bonjour,
Résoudre les équations suivantes.
a) x-5=3
x= 3+5
x= 8
b) -1=4+x
x= -1-4
x= -5
c) -5x=0
x=0
d) 5-x=8
-x= 8-5
x= -3
e) 3x+7=18
3x= 18-7
x= 11/3
f) x-1/8=2/7
x= 2/7 + 1/8
x= 2*8/56 + 1*7=56
x= 23/56
1 votes
Thanks 1
Louise93
daccord
Louise93
je t'ai note meilleure reponse
inequation
merci,
Louise93
de rien
Louise93
j'ai une question
Louise93
-5x=8
Louise93
il vient d'où le -8 dans x= -8/5
inequation
-5x= 8 et un seul - x= 8/5, tu changes de signe pour x et devient positif sans oublier le signe de 8/5 devient négatif
Louise93
merci
inequation
de rien
khaled12
A) x - 5 = 3 b) -1 = 4 + x c) -5x = 0
x = 3 + 5 -x = 5
x = 0/-5 = 0
x = 8
x = 5/-1 = -1
d) 5 - x = 8 e) 3x + 7 = 18 f) x - 1/8 = 2/7
-x = 8 - 5 3x = 18 - 7 x = 2/7 + 1/8
-x = 3 3x = 11 x = 16/56 + 7/56
x = 3/-1 = -3 x = 11/3 x = 23/56
0 votes
Thanks 1
Louise93
merci
khaled12
derien
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Bonjour,Résoudre les équations suivantes.
a) x-5=3
x= 3+5
x= 8
b) -1=4+x
x= -1-4
x= -5
c) -5x=0
x=0
d) 5-x=8
-x= 8-5
x= -3
e) 3x+7=18
3x= 18-7
x= 11/3
f) x-1/8=2/7
x= 2/7 + 1/8
x= 2*8/56 + 1*7=56
x= 23/56
x = 3 + 5 -x = 5 x = 0/-5 = 0
x = 8 x = 5/-1 = -1
d) 5 - x = 8 e) 3x + 7 = 18 f) x - 1/8 = 2/7
-x = 8 - 5 3x = 18 - 7 x = 2/7 + 1/8
-x = 3 3x = 11 x = 16/56 + 7/56
x = 3/-1 = -3 x = 11/3 x = 23/56