x/3+x/6=1|*6
2x+x=6
3x=6
x=2
y/3-y/2=-7|*6
2y-3y=-42
y=42
y/2-y/7=5|*14
7y-2y=70
y=14
z/5-z/10=1|*10
2z-z=10
z=10
x/3+x/6=1|*6
2x+x=6
3x=6
x=2
y/3-y/2=-7|*6
2y-3y=-42
y=42
y/2-y/7=5|*14
7y-2y=70
y=14
z/5-z/10=1|*10
2z-z=10
z=10