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Sagot :

Bonjour,

4x/3 = 5/3

4x= (5*3) /3

4x= 3

x= 3/4  

6x+3 -5x/2 = 2

6x-5x /2 = 2-3

12x/2 -5x/2 = 1

7x/2 = 1

7x = 1*2

7x = 2

x= 2/7

-5x +3 +4x -4 = -3x -3 +4

x-1 = 4

x= 4+1

x= 5

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