\frac{-21 x - 28 y}{21}

\frac{14 x + 21 y}{-7}

\frac{-12 x + 18 y}{30}

\frac{-18 x + 20 y}{6}

\frac{-10 x + 15 y}{15}

\frac{-12 x - 9 y}{15}

\frac{30 x + 20 y}{-10}

\frac{-16 x + 40 y}{-16}

\frac{21 x + 49 y}{-35}

\frac{-30 x + 42 y}{-12}

\frac{27 x - 12 y}{9}

\frac{-27 x + 36 y}{18}

\frac{21 x + 28 y}{14}

\frac{16 x + 24 y}{-32}

\frac{-56 x + 16 y}{40}

\frac{-16 x - 10 y}{-6}

\frac{-20 x - 32 y}{8}

\frac{-50 x + 60 y}{-50}

\frac{-60 x + 70 y}{-20}

\frac{-14 x - 21 y}{-21}

\frac{-21 x - 35 y}{-35}

\frac{18 x + 12 y}{-6}

\frac{-16 x - 40 y}{-16}

\frac{-30 x + 70 y}{-10}

\frac{-6 x + 8 y}{-8}

\frac{50 x + 60 y}{-50}

\frac{21 x - 70 y}{-7}

\frac{30 x - 25 y}{25}

\frac{100 x + 30 y}{-40}

\frac{36 x - 30 y}{-24}