Răspunsuri

  • Utilizator Brainly
2014-09-22T15:20:05+03:00
A+b+c=300
a=b+20
c=3b

b+20+b+3b=300
5b+20=300
5b=280
b=280:5
b=56

c=3b
c=3*56
c=168

a=b+20
a=56+20
a=76