Răspuns :
a=x
b=x+1
c=x+2
a+b+c=30
x+x+1+x+2=30
3x+3=30
3x=27
a=x=9
b=9+1=10
c=9+2=11
Raspuns: Numerele sunt 9,10 si 11.
b=x+1
c=x+2
a+b+c=30
x+x+1+x+2=30
3x+3=30
3x=27
a=x=9
b=9+1=10
c=9+2=11
Raspuns: Numerele sunt 9,10 si 11.
a + b + c = 30
a |___|
b |___|+1
c |___|+2
30 - (1+2) = 30 - 3 = 27
27 : 3 = 9 (un segment egal)
a = 9
b = 9+1 = 10
c = 9 + 2 = 11
verificare:
9 + 10 + 11 = 30
a |___|
b |___|+1
c |___|+2
30 - (1+2) = 30 - 3 = 27
27 : 3 = 9 (un segment egal)
a = 9
b = 9+1 = 10
c = 9 + 2 = 11
verificare:
9 + 10 + 11 = 30