x - primul numar
y - al doilea
z - al treilea
x+y+z=297
x=2y+25, deci y=(x-25)/2
x=11z+8, z=(x-8)/11
corespunzator
x+(x-25)/2+(x-8)/11=297
aducem la numitor comun[tex]\frac{22x+11x-275+2x-16}{22}[/tex]=297
35x=6825
x=195
y=(195-25)/2=85
z=(195-8)/11=17