Problem:
Solve the following system of three equations: 
$-24 x+4 y-6 z+20=0$, $-6 x+2 y+3 z+12=0$, $-4 x-8 y+22 z-13=0$
Answer:
$x=\frac{71}{186}$, $y=-\frac{469}{124}$, $z=-\frac{133}{186}$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/system_of_equations/44696.txt'}