Réponse :
a) 2006x + 7 = 1
2006x = -6
x=
b) 7x - 2006 = 1
7x = 2007
x =
c) (7-2006)x + 2006 + 7 = 2x1
-1999x + 2006 + 7 = 2
-1999x = -2011
1ere question : Faux
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Réponse :
a) 2006x + 7 = 1
2006x = -6
x=
b) 7x - 2006 = 1
7x = 2007
x =
c) (7-2006)x + 2006 + 7 = 2x1
-1999x + 2006 + 7 = 2
-1999x = -2011
x=
1ere question : Faux