Question 636798
	
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
 x+ y+ z=6              {{{y = -x -z + 6}}}
<u>2x-y+z=3</u>
 3x + 2z = 9    | 3x-z = 0   0r  z = 3x
 3x + 6x = 9
      x = 1  and z = 3  and y = 2