Question

求50道一元一次方程应用题!~~~

Answer 1

http://zhidao.baidu.com/question/203311706.html

http://zhidao.baidu.com/question/221432659.html

http://iask.sina.com.cn/b/18356925.html

http://zhidao.baidu.com/question/139545364.html?an=0&si=5