Question 666683
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Hi,
2x-y+z=-4    ||  z=5 
-2x+3y-z=-10 ||   z=5 
 
2x - y = -9       {{{2x = -9 + y}}}
<u>-2x + 3y = -5</u>    || Adding to eliminate x
     2y = -14
      y = -7  and x = -8    {{{x = -16/2}}}