Analyze the following problem. Was a mistake made? If so, find the error and correct it. Then, explain why it was a mistake.PLEASE HELP!!

Answer:
A mistake was made. In the first and second line, you're supposed to distribute. Int the first half, the 4 was distributed to the 8 and the 7. In the second half the 6 was only given to the 3 and not the 4.
Step-by-step explanation: