Réponses

2013-12-05T22:48:07+01:00
BA + BD = BC
FB + FE = FD
AE + AB = AC
BC + EF = BA
CF - CE = CA
DC + AB = 0
AC - AB = AE
DA - BA = DF
merci beaucoup !
N 19 : AB - EC =AF DB + CF = DG GA + GE + GC
perf !