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Chocolat13014
@Chocolat13014
May 2019
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Salut vous pouvez m'aidez c'est pour demain je n'arrive pas a le faiire :'( merci de me le faire en entier svp c'est noté merci
Résoudre les équations suivantes :
a) x + 9 = 15
b) 4x + 7 = 35
c) 4,3x + 8,7 = 17,3
d) 3 + 5x = 2x + 7
e) 1 - 3x = 9 + 5x
f) 3,9x + 1,6 = -5,2x - 3,8
Les x sont des lettres et non des fois :) Merci de me le faire en entier :) !
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corinnemattonchips59
Verified answer
Bonsoir
a) x+9= 15
x= 15-9
x= 6
b) 4x+7=35
4x= 35-7
4x= 28
x= 28/4
x= 7
c) 4,3x+8,7= 17,3
4,3x= 17,3-8,8
4,3x= 8,6
x= 8,6/4,3
x= 2
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Chocolat13014
Le d,e,et f stp c'est urgent
pierre710
c'est fait
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Verified answer
Bonsoira) x+9= 15
x= 15-9
x= 6
b) 4x+7=35
4x= 35-7
4x= 28
x= 28/4
x= 7
c) 4,3x+8,7= 17,3
4,3x= 17,3-8,8
4,3x= 8,6
x= 8,6/4,3
x= 2