Cheolsu's weight is 2/3 of his mother's weight, and his father's weight is 72 kilograms (kg). If the sum of Cheolsu's and his father's weight is equal to twice the mother's weight, find how many kilograms (kg) Cheolsu weighs.
72 2 1 2/3 [OP_DIV] [OP_MUL] 1 [OP_SUB] [OP_DIV]
var_a = 72
var_b = 2
var_c = 1
var_d = 0.6666666666666666
var_e = var_c / var_d
var_f = var_b * var_e
var_g = 1
var_h = var_f - var_g
var_i = var_a / var_h
print(int(var_i))