Răspunsuri

2014-05-28T18:26:08+03:00
A+ b+c= 69
b= a+1
c=a+2
=> 3a+ 3 = 69
3a= 66
a= 22
b= 23
c=24
  • Utilizator Brainly
2014-05-28T18:35:31+03:00
(a+a+1+a+2) : 3 = 23
(a+a+1+a+2) = 32x3
a+a+1+a+2=69
3a+3=69
3a=69-3
3a=66
a=22
22+1=23
22+2=24