exam Maths Puzzle Numerical Ability

Solve the linear inequality:

http://www.webassign.net/www23/symImages/2/d/87cadab0a0f76902a342858f18159d.gif

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exam Other Question

-8<_8+y Using Gauss-Jordan elimination- solve following system of equations.

x+y+z=2
2x-3y+z=-11
-x+2y-z=8

I think it is x= 1/3, y=10/3, z=-5/3

Am I correct?
Thanks