Răspunsuri

2014-09-21T21:02:25+03:00
Cel mai inteligent răspuns!
2014-09-21T21:02:53+03:00
X-primul nr
x+15-al doilea nr

x+x+15=135
2x=135-15
2x=120
x=120:2
x=60(primul nr)
60+15=75(al doilea nt)
3 5 3