[ Eq(1*k2*x1 + 1*k2*x3 + 1*k2*x4 + 1*k2*x5 + 1*k2*x6 + 1*k2*x21 + 1*k2*x22 + 1*k2*x23, k2*k47),
  Eq(1*k2*x2 + 1*k2*x3 + 1*k2*x5 + 1*k2*x7 + 1*k2*x9 + 1*k2*x10 + 1*k2*x11 + 1*k2*x12 + 1*k2*x14 + 1*k2*x15 + 1*k2*x24 + 1*k2*x25 + 1*k2*x26, k2*k48),
  Eq(1*k2*x8 + 1*k2*x9 + 1*k2*x11 + 1*k2*x16 + 1*k2*x17 + 1*k2*x19 + 1*k2*x27, k2*k49),
  Eq(1*k2*x12 + 1*k2*x13 + 1*k2*x14 + 1*k2*x15 + 1*k2*x21 + 1*k2*x22 + 1*k2*x23, k2*k50),
  Eq(1*k2*x17 + 1*k2*x18, k2*k51),
  Eq(1*k2*x19 + 1*k2*x20 + 1*k2*x24 + 1*k2*x25 + 1*k2*x26 + 1*k2*x27, k2*k52) ]