Răspunsuri

2014-09-22T20:33:37+03:00
A=4
b=4+7=11
c=(a+b+c)-(a+b)=17-(11+4)=2

  • Utilizator Brainly
2014-09-22T23:22:04+03:00
A+b+c=17
a=4
b=4+7⇒b=11

4+11+c=17
15+c=17
c=17-15
c=2

Verificare : 4+11+2=17