3a-2b+3c-5=3a-( )=3a+( )

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 18:02:23
3a-2b+3c-5=3a-( )=3a+( )

3a-2b+3c-5=3a-( )=3a+( )
3a-2b+3c-5=3a-( )=3a+( )

3a-2b+3c-5=3a-( )=3a+( )
3a-2b+3c-5=3a-(2b-3c+5)=3a+(-2b+3c-5 )