Răspunsuri

2014-03-05T20:02:44+02:00
Scaune - s
banci - b
s+b = 81
b-29 = s
=> b-29 + b = 81 | + 28
2b= 110 |:2
b= 55 banci 
=> s=81-55= 26 scaune 
1 5 1
2014-03-05T20:03:54+02:00
81-29=52
52:2=26 nr scaunelor
26+29=55 nr bancilor
1 5 1