Răspunsuri

2014-06-02T22:59:25+03:00
A+b+c=63

a=3c

2b=c

a=3*2b=6b

6b+b+2b=63
9b=63
b=7

a=7*6=42
c=7*2=14
2014-06-02T23:04:39+03:00
A+b+c=63
a=3c⇒a=3·2b⇒a=6b
c=2b
6b+b+2b=63
9b=63
b=63:9
b=7
a=6b=6·7
a=42
c=2b=2·7
c=14
Poti face proba !!!