Răspuns :
Fie a,b,c numerele date
a+b+c=215
a-x=49=>a=49+x
b-x=58=>b=58+x
c-x=33=>x=33+x
49+x+58+x+33+x=215
140+3x=215
3x=215-140
3x=75
x=25=>a=74
b=83
c=58
a+b+c=215
a-x=49=>a=49+x
b-x=58=>b=58+x
c-x=33=>x=33+x
49+x+58+x+33+x=215
140+3x=215
3x=215-140
3x=75
x=25=>a=74
b=83
c=58