Răspuns :
x+y+z=141
x=2z
y-x=3(x+z)+1
y-2z=3(2z+z)+1
y=2z+9z+1=11z+1
2z+11z+1+z=141
14z+1=141
14z=140
z=10
x=20
y=111
x*y*z= 10*20*111 =22200 , ultima cifra a produsului e 0
x=2z
y-x=3(x+z)+1
y-2z=3(2z+z)+1
y=2z+9z+1=11z+1
2z+11z+1+z=141
14z+1=141
14z=140
z=10
x=20
y=111
x*y*z= 10*20*111 =22200 , ultima cifra a produsului e 0