Algebra 2HardSystems of Equations ShareSystems of Equations · Hard problemSolve the system for xxx, yyy and zzz.{x+y−2z=5−2x−y+2z=−65x−2y+5z=−8\begin{cases} x + y - 2 z = 5 \\ - 2 x - y + 2 z = -6 \\ 5 x - 2 y + 5 z = -8 \end{cases}⎩⎨⎧x+y−2z=5−2x−y+2z=−65x−2y+5z=−8 Show answer Walk through it step by step Practice more like this Review this concept