Question 1032022
x+y+z=14
x-3z=y
y=x+6
x-3z=x+6
-3z=6
z=-2
x+y=16, going back to the first equation.
y=x+6
so x+x+6=16
2x=10
x=5
y=11
The numbers are 5, 11, -2
They add to 14 
The first number minus 3 (-2)= 11
The second number is 6 more than the first.