[ Eq(1*k49*x1 + 1*k49*x4, k49*k50),
  Eq(1*k49*x2 + 1*k49*x6, k49*k51),
  Eq(1*k49*x3 + 1*k49*x4, k49*k52),
  Eq(1*k49*x5 + 1*k49*x6, k49*k53),
  Eq(1*k49*x7 + 1*k49*x8, k49*k54),
  Eq(1*k49*x9 + 1*k49*x10, k49*k55),
  Eq(1*k49*x11 + 1*k49*x12, k49*k56),
  Eq(1*k49*x14 + 1*k49*x15, k49*k57),
  Eq(1*k49*x16 + 1*k49*x17, k49*k58),
  Eq(1*k49*x18 + 1*k49*x19, k49*k59),
  Eq(1*k49*x20 + 1*k49*x21, k49*k60),
  Eq(1*k49*x22 + 1*k49*x23, k49*k61),
  Eq(1*k49*x24 + 1*k49*x25, k49*k62),
  Eq(1*k49*x26 + 1*k49*x27, k49*k63),
  Eq(1*k49*x28 + 1*k49*x29, k49*k64) ]