Margie’s work for adding linear expressions is shown below. After checking her answer with the answer key, she solved it incorrectly. Given (−1.56b + 10) − (4.27b − 14)

Step 1 −1.56b + 10 + (−4.27b) + 14

Step 2 −1.56b + 4.27b + 10 + 14

Step 3 (−1.56b + 4.27b) + (10 + 14)

Step 4 2.71b + 24

Part A: Identify and explain the first step where Margie made an error.

Part B: Explain how to correctly write the expression in fewest terms by correcting the error in

Part A. Show all work.

PLEASE HELP I NEED THIS FOR A TEST I’LL GIVE YOU 20 POINTS