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Sagot :

MATHEO74

tu passes les x d'un coté et les nombres de l'autre

 3x - 2 = 8

3x = 8 + 2

3x = 10

x = 10/3

5x - 8 = - 7x + 16

5x +7x = 16 + 8

12x = 24

x = 24/12 =2

4(2x -5) +2 = 3 (x +7) + 1

8x - 20 + 2 = 3x +21 +1

8x - 3 x = 21 + 1 +20 - 2

11 x = 44

x = 44/11 = 4

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