Réponses

2014-08-15T11:57:16+02:00
On sait que : 2A + B = 2C + A = 2B + 2C = 3B + A = 10
A partir de ces égalités, trouvez la valeur de chaque lettre...


2(4) + 2 = 2(3) + 4 = 2(2) + 2(3) = 3(2) + 4 = 10
8 + 2 = 6 + 4 = 4 + 6 = 6 + 4 = 10
10 = 10 = 10 = 10 = 10

A = 4
B = 2
C = 3
2014-08-15T13:06:39+02:00