Răspunsuri

2014-05-10T18:52:03+03:00
A+b+c=399
a-x=89
a=89+x

b-x=162
b=162+x

c-x=115
c=115+x

89+x+162+x+115+x=399
3x+366=399
3x=399-366
3x=33
x=11

a=89+11=100
b=162+11=173
c=115+11=126
2014-05-10T20:43:09+03:00
| --- | 89 nr1
|---|+162nr2
|---|+115 nr3
89+162+115=366  (399-366):3=11 nr scazut
89+11=100nr1
162+11=173nr2
115+11=126nr3