5. Xiaohong and Xiaoliang play the "Rock, Paper, Scissors" game, agreeing that if they win, they go up three steps, and if they lose, they go down two steps. They start playing from the 9th step, and after 12 rounds (each round has a winner and a loser), Xiaohong is on the 10th step. How many times did Xiaohong win?
【Analysis】If Xiao Hong wins all 12 times, then she should climb 36 steps. In fact, Xiao Hong only climbed 1 step. If one win is changed to one loss, then she needs to go down $3+2=5$ steps. Therefore, Xiao Hong lost $(36-(1) \div 3+2=7$ times, so Xiao Hong won 5 times.