Răspuns :
a,b,c
a+b+c = 15
b=a+1
c=a+2
a+(a+1)+(a+2) = 15
3a + 3 = 15
3a = 15-3
3a=12
a=12:3
a=4
b=4+1
b=5
c=a+2
c=4+2
c=6
a+b+c = 15
b=a+1
c=a+2
a+(a+1)+(a+2) = 15
3a + 3 = 15
3a = 15-3
3a=12
a=12:3
a=4
b=4+1
b=5
c=a+2
c=4+2
c=6
a+1 + a+2 + a+3 =15
(a+1) + (a+2) + (a+3)=15
3a + 6 = 15
3a = 15-6
3a = 9
a = 9:3
a= 3
a+3 = 6 ( cel mai mare numar
(a+1) + (a+2) + (a+3)=15
3a + 6 = 15
3a = 15-6
3a = 9
a = 9:3
a= 3
a+3 = 6 ( cel mai mare numar