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2x +3y + 2z = -2
-4y -3z = 5
3x + y - 3z = 8 (x2) 6x + 2y -6z = 16
2x -y -z = 3 (x3) 6x -3y - 3z = 9
5y - 3z = 7
-4y -3z = 5
9 y = 2
y = 2/9
-4(2/9) - 3z = 5
-8/9 - 3z =5
3z = -53/9
z = -53/27
2x - (2/9) - (-53/27) = 3
2x - 6/27 + 53/27 = 3
2x + 47/27 = 81/27
2x = 34/27
x = 34/54 = 17/27