2/3a-(2/3a-2/3b)-3/4b

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/08 05:30:51
2/3a-(2/3a-2/3b)-3/4b2/3a-(2/3a-2/3b)-3/4b2/3a-(2/3a-2/3b)-3/4b=2/3a-2/3a+2/3b-3/4b=-1/12b2/3a-(2/3a

2/3a-(2/3a-2/3b)-3/4b
2/3a-(2/3a-2/3b)-3/4b

2/3a-(2/3a-2/3b)-3/4b
=2/3a-2/3a+2/3b-3/4b
=-1/12b

2/3a-(2/3a-2/3b)-3/4b
=2/3a-2/3a+2/3b-3/4b
=-1/12b

2/3a-(2/3a-2/3b)-3/4b
=2/3a-2/3a+2/3b-3/4b
=(2/3-2/3)a+(2/3-3/4)b
=-1/12b