PLEASE HELPPPPPP GIVING BRAINLIEST! Margie's work for adding linear expressions is shown below. After checking her answer with the answer key, she solved it incorrectly. Given (−2.67b + 11) − (5.38b − 15) Step 1 −2.67b + 11 + (−5.38b) + 15 Step 2 −2.67b + 5.38b + 11 + 15 Step 3 (−2.67b + 5.38b) + (11 + 15) Step 4 2.71b + 26 Part A: Identify and explain the first step where Margie made an error. (2 points) Part B: Explain how to correctly write the expression in fewest terms by correcting the error in Part A. Show all work. (2 points) Source StylesFormatFontSize