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Sagot :

Réponse:

1 12x+3=4x+6

12 x + 3 - 3 - 4 x = 4x-4 x + 6 - 3

8 x = 3

x = 3 / 8

2 24x-12-2x-16 = 12

22x=12 + 12 + 16=40

x = 40 / 22=20 / 11

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