Réponses

2012-05-27T12:06:33+02:00

x*2/3x - 4/5 = 13/6x - 8/25

2/3 - 13/6x = -8/25 +4/5

- 13/6x = -8/25 +20/25 -2/3

- 13/6x = 12/25 -2/3

- 13/6x = 36/75 -50/75

- 13/6x = -14/75

13/6x = 14/75

6x = 13*75/14

x = (13*75)/(14*6)

x = (13*5*5*3)/(7*2*3*2)

x = (13*5*5)/(7*2*2)

x = 325/28

 

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