Răspunsuri

2014-05-02T09:20:41+03:00
A=1·b+5
b-c=14⇒c=b-14
a+b+c=231
Inlocuim pe a si b in ultima ecuatie

b+5+b+b-14=231
3b=240
b=80
a=80+5=85
c=80-14=66
1 5 1
  • Utilizator Brainly
2014-05-02T12:18:01+03:00
ΔABC:
A:B=1r 5 ==> A=B+5
B-C=14 ==> C=B-14
Inlocuiesti :
B-14+B+B+5=231
3B =231+9=240 ==> B=80
A=85
C=66