Réponses

2012-09-19T21:02:16+02:00

(14/12) x = 7/4

(7*2)x/(6*2) = 7/4

7x/6 = 7/4

(7x/6)  /7 = (7/4) /7

x/6 = 1/4

(x/6) * 6 = (1/4) * 6

x = 6/4

x = 3/2

 

En espérant t'avoir aidé.