Mathematics, 24.09.2020 01:01 joselinen
PLEASE HELP!!
Arlene is showing her work in simplifying β7.9 + 8.2 β 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write feedback to Arlene explaining the mistake she made and how to correct her work.
StepWork Reasoning
β7.9 + 8.2 β 3.4 + 2.1 Original problem
1 β7.9 + 8.2 + (β3.4) + 2.1 Additive inverse
2 β7.9 + (β3.4) + 8.2 + 2.1 Associative property
3 (β7.9 + (β3.4)) + (8.2 + 2.1 Commutative property
4 β11.3 + 10.3 Simplify
5 β1 Simplify
Answers: 1
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PLEASE HELP!!
Arlene is showing her work in simplifying β7.9 + 8.2 β 3.4 + 2.1. Identify any errors...
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