Răspunsuri

2014-09-26T15:34:40+03:00
A+2b+c = a + b + b + c=5+ 8=13
2a + 5b + 3c= 2a + 2b +3b+3c= 2 ori 5 + 3 ori 8 = 10+ 24=34
2x5+2x8+8=10+16+8=34
iata un alt exemlu luat de pe google
2a+5b+3c=2(a+b)+3(b+c)=2x5+3x7=10+21=31
eu ramin la ideea ca se rezolva asa:2a+5b+3c=2(a+b)+3(b+c)=2x5+3x8=34
sunt multe moduri de rezolvare
multumesc mult
2014-09-26T15:37:40+03:00
A+b=5,b+c=8
a+2b+c=a+b+b+c=5+8=13
2a+5b+3c=a+a+2b+b+b+b+c+c+c=a+b+b+b+c+c+13=
5+8+8+13=34
e c el mai bun raspuns?