the best way to solve the problem is by putting off the meeting.
把做定语的动词不式to solve改成定语从句
the best way (that can solve the problem) is by putting off the meeting.不用can行不行？为什么？因为the way to do的意思是做什么的方式在变成定语从句时，定语要修饰 the way,这里要想意思通顺，用can即可，其它的合理的话也行