code: def sol_10x8():
      return {
          x0: -a_21 / a_12 * x4,
          x1: a_21 / a_12 * x4,
          x2: 0,
          x3: -x4,
          x5: a_43 / a_34,
          x6: -a_43 / a_34,
          x7: 1,
      }
  
imports: from sympy.polys.rings import ring
  from sympy.polys.fields import field
  from sympy.polys.domains import ZZ, QQ
  from sympy.polys.solvers import solve_lin_sys
label_desc: Use image node_id 14 for calling a global function with example usage: sol_10x8() and returns: dict