Bonjour,
2x+3=6x-9
3+9 = 6x -2x
12 = 4x
x= 12/4
x= 3
Réponse:
2x-6x=-9-3
-4x=-12
x=-12÷-4
x=12÷4
x=3
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Bonjour,
2x+3=6x-9
3+9 = 6x -2x
12 = 4x
x= 12/4
x= 3
Réponse:
2x+3=6x-9
2x-6x=-9-3
-4x=-12
x=-12÷-4
x=12÷4
x=3