When nine soccer balls and seven baseballs of the same weight were weighed, they were 10.98 kilograms (kg). If one soccer ball weighs 0.8 kilograms (kg), how many kilograms (kg) does one baseball weigh?
10.98 0.8 9 [OP_MUL] [OP_SUB] 7 [OP_DIV]
var_a = 10.98
var_b = 0.8
var_c = 9
var_d = var_b * var_c
var_e = var_a - var_d
var_f = 7
var_g = var_e / var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))