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Sagot :

VINS

Réponse :

bonjour

3 x - 4

x = 4/3

3 + x = 4

x = 4 - 3

x = 1

x/4 = 5

x = 20

x - 4 = 5

x = 5 + 4

x = 9

15.3 = 6 x

- 6x = - 15.3

x =  2.55

15.3  = 6 + x

- 6 x = 6 - 15.3

- 6 x =   - 9.3

x =  1.55

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