\left\{ \begin{array} { l } { \frac { 1 } { x } - \frac { 2 } { y } + \frac { 3 } { z } = 17 } \\ { \frac { 2 } { x } + \frac { 3 } { y } - \frac { 4 } { z } = - 10 } \\ { \frac { 3 } { x } - \frac { 2 } { y } + \frac { 5 } { z } = 31 } \end{array} \right.
Solve for x, y, z
x=\frac{1}{4}=0.25
y=-\frac{1}{2}=-0.5
z=\frac{1}{3}\approx 0.333333333
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