Răspunsuri

  • Utilizator Brainly
2014-09-28T18:45:10+03:00
Ab+ac+a=a(b+c+1)=a(10+1)=11a
11a=165/:11
a=15
40 4 40
2014-09-28T18:45:13+03:00
Ab+ac+a=165
bc=10
REZOLVARE
a(b+c)= 165      explicatie: dai factor comun pe a
a*10=165
a=165:10
a=16.5

19 4 19