Question 907814
4(2z-2)+2y-3z=6
(2z-2)-4y+z=-4
......
2y+5z=14
<u>-4y+3z=-2</u>
 13z = 26
z = 2  and x = 2 {{{2*2-2}}} and y = 2  {{{2y+10 = 14}}}