A number equals a number minus 5 and multiply it by 4. Find some number.
5 4 [OP_MUL] 4 1 [OP_SUB] [OP_DIV]
var_a = 5
var_b = 4
var_c = var_a * var_b
var_d = 4
var_e = 1
var_f = var_d - var_e
var_g = var_c / var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))