Problem:
Solve the following system of two equations: 
$20 x-12 y+11=0$, $13 x+6 y-1=0$
Answer:
$x=-\frac{9}{46}$, $y=\frac{163}{276}$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/system_of_equations/26286.txt'}