c + r + g = 58
r = c + 7
g = 3 x r
r /......../...+7
c /......../
g /......../......../......../..+7/..+7/...+7
cat reprezinta partile egale?
58 - 7 - 7 - 7 - 7 = 58 - 28 =30
cat reprezinta un segment?
30 : 5 = 6
cate curci sunt?
1 x 6 = 6
cate rate sunt?
1 x 6 + 7 = 6 + 7 = 13
cate gaini sunt?
3 x 6 + 21 = 18 + 21 = 39
verificam
6 + 13 + 39 = 58