[ Eq(1*k39*x1 + 1*k39*x2, k39*k40),
  Eq(1*k39*x3 + 1*k39*x4 + 1*k39*x5, k39*k41),
  Eq(1*k39*x6 + 1*k39*x7, k39*k42),
  Eq(1*k39*x8 + 1*k39*x9 + 1*k39*x13, k39*k43),
  Eq(1*k39*x10 + 1*k39*x11 + 1*k39*x14, k39*k44) ]