So the question is a little confusing - I think what you’re trying to ask is what might happen if someone doesn’t know the instructions to a task? And that I can hopefully answer.
If you aren’t paying attention to instructions, for example, in science class, and you’re doing a science experiment, you might mix some wrong chemicals causing safety hazards or taint the experiment. It’s important to listen carefully as well as observe and copy how your teacher does it, if you want to get the proper results. Otherwise you might have to redo it.
Same goes for math equations - if you don’t follow the steps to properly get an answer it might mess up your formula and you’ll have to start over to find where you went wrong.
Maybe this was the answer yoh we’re looking for? Maybe not? Hope this helps :)