The mistake occurs in Step 3. The student incorrectly added 4 to both sides instead of subtracting it. The correct action would be to add 4 to both sides to isolate the term with
So the correct statement for Step 3 should be:
Step 3:
However, the original mistake in reasoning is that after Step 2, they incorrectly claimed
Thus, the proper correction timeframe would be in Step 2, where
In conclusion, the accurate errors and their nature are likely alluded to in Steps 2 and 3 within the overall solution travel.