Answer is: x such that x=-z-2, y=1, and z such that z=-x-2
Explanation:
Add equation 1 to equation 3 to get: 3y=3, So y=1. Plugging this in to the other equations, you get some form of x+z=-2 (equation 1). Equation 2 becomes 2x+2z=-4 and Equation 3 becomes -x-z=2.