题目

解方程： （1） （2） 答案：解：去括号得：5x-25+2x=-4， 移项合并得：7x=21， 解得：x=3 解：去括号得：x- 32 + 3−x2 = 13 ， 去分母得：6x-9+9-3x=2， 移项合并得：3x=2， 解得：x= 23阅读短文，判断对错,对的打T, 错误的打F。My name is Li Shan. I am ten. I am a student(学生) in Grade 4. We have many subjects at school. Today is Monday. We have Chinese, Math and English this morning. We have PE and Music in the afternoon. I like English very much. Do you like English?【1】I am in Grade 5. （_______）【2】Today is Monday. （_______）【3】Li Shan has 3 subjects this morning. （_______）【4】Li Shan doesn’t have PE in the afternoon. （_______）【5】Li Shan likes English very much. （_______）