如果2m-3n=2 m+2m=1,那么3m-n+3=?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 17:58:34
如果2m-3n=2m+2m=1,那么3m-n+3=?如果2m-3n=2m+2m=1,那么3m-n+3=?如果2m-3n=2m+2m=1,那么3m-n+3=?2m-3n=2m+2n=1两式相加:3m-n

如果2m-3n=2 m+2m=1,那么3m-n+3=?
如果2m-3n=2 m+2m=1,那么3m-n+3=?

如果2m-3n=2 m+2m=1,那么3m-n+3=?
2m-3n=2 m+2n=1 两式相加:3m-n=3 所以3m-n+3=3+3=6