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lorelei2001
@lorelei2001
January 2021
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Bonjour
Encore besoin d'Aide en Math niveau 3ème
des équations à résoudre. ce ne sont pas les mêmes que sur le précédant sujet.
meri de votre aide
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nonotata
Bonjour
a)
5x+3x = 6+3
8x = 9
x = 9/8
b)
-4x-2x = -3-7
-6x = -10
x = -10/-6
x = 10/6
x = 5/3
c)
15-6x = 7-4x
-6x+4x = 7-15
-2x = -8
x = -8/-2
x = 8/2
x =4
d)
3-2x+4 = x+7
-2x-x = 7 -3-4
-3x = 7-7
-3x = 0
x = 0/-3
x =0
1 votes
Thanks 1
lorelei2001
Super merci de ton aide.
nonotata
je t en prie
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Lista de comentários
a)
5x+3x = 6+3
8x = 9
x = 9/8
b)
-4x-2x = -3-7
-6x = -10
x = -10/-6
x = 10/6
x = 5/3
c)
15-6x = 7-4x
-6x+4x = 7-15
-2x = -8
x = -8/-2
x = 8/2
x =4
d)
3-2x+4 = x+7
-2x-x = 7 -3-4
-3x = 7-7
-3x = 0
x = 0/-3
x =0