Braindom is a fun game but the levels can get pretty tricky. Here we have the answer for "Try to find the mistake" in Braindom Level 81. You can use the answer below or watch the video. One thing to be aware of is that the level number might be different for your puzzle. Sometimes the levels can get switched around so if that happens try to search for the question.
Answer
Tap the backward 7 on the left.
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