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Answered

jai besoin de votre aide svp :

résoudre les equations :
7x+4 = 6
12x-1=9
13 x - 5 = 12
et
3 x + 2 = 7

MERCI BEAUCOUPPP

Sagot :

DEBOEVERPAULINE2004

Réponse :

7x+4 = 6

7x = 2

x = 2/7

12x -1 = 9

12x = 10

x = 10/12 = 5/6

13x-5 = 12

13x = 17

x = 17/13

3x +2 = 7

3x = 5

x = 5/3

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