Răspunsuri

  • Utilizator Brainly
2014-06-17T22:53:18+03:00
A+b=83
a=3b+3

3b+3+b=83
4b+3=83
4b=83-3
4b=80
b=20

a=3x20+3
a=60+3
a=63

Verificare : 63+20=83
4b=80 => b=80:4 => b=20
Nu te supara de unde lai aflat pe 4?
3b+b=4b