Răspunsuri

2014-03-04T13:11:04+02:00
|---|---|nr1
|---| nr2
|----|---|---|+6 nr3
66-6=60   60:6=10 un sg si nr2
10x2=20nr1
10x3+6=36 nr3
2014-03-04T13:44:28+02:00
A=2b
c=a+b+6
a+b+c=66
6b+6=66⇒6b=66-6⇒b=10
a=2×10=20
c=a+b+6=20+10+6=36