abreunayleah abreunayleah

23-05-2023
Mathematics

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(Adding and Subtracting Linear Expressions HC)
Margie's work for adding linear expressions is shown below. After checking her answer with the answer key, she solved it incorrectly.
Given (-4.23b+13) - (5.47b-12)
Step 1 -4.23b+13+ (-5.47b) + 12
Step 2 -4.23b + (-5.47b) + 13 + 12
Step 3 (-4.23b+ (-5.47b))+ (13+12)
Step 4 9.7b+ 25
Part A: Identify and explain the first step where Margle 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)

Adding and Subtracting Linear Expressions HC Margies work for adding linear expressions is shown below After checking her answer with the answer key she solved class=

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