Hi im struggling with the following question and would appricate some assistance.

I have attached the question via a jpeg image.

Many Thanks

Question 3 - 15 marks This question is based on your work on MU123 up to and including Unit 5. In this question, you are asked to comment on a student's incorrect attempt at answering the question detailed below. The question (a) Simplify the following expression as far as possible, showing all your working: lly - 5 -5y + 41. (b) Solve the following equation, showing all your working: (x + 3) = 20. The student's incorrect attempt: (a) Given: 114 - 5- 5y + 41 Group Like terms: ity - 5y - 5+ 41 collect like terms: by + 36 = 0 Subtract 36: by = -36 Divide by 6: 4= -6 The solution is y = -6 (b) Given: = (x + 3) = 20 Clear the fraction: 5 (x + 21) = 140 Multiply by 5: 5x + 105 = 140 Subtract 105: 5X = 35 Divide by 5: *=7 The solution is x = 7 (a) There are two places in the student's attempt where a mistake has been made. Identify these mistakes and explain, as if directly to the student, why, for each mistake, their reasoning is incorrect. [4]