Angie is showing her work in simplifying -7.9 +3.2 - 3.4 + 2.1. Identify any errors in her work or in her reasoning. Step
Work
Reasoning
-7.9 + 8.2-3.4 + 2.1
Original problem
1
-7.9 +8.2 + (-3.4) + 2.1
Additive inverse
2
-7.9 + (-3.4) + 8.2 + 2.1
Commutative property
3
[-7.9+(-3.4)] + (8.2 + 2.1) Associative property
4
-11.3 + 10.3
Simplify
5
-1
Simplify
O She did not make any errors.
Step 1: She wrote - 3.4 incorrectly as + (-3.4).
Step 2: She identified changing the order of the numbers as the commutative property, which is incorrect.
Step 3: She identified changing the grouping of the numbers as the associative property, which is incorrect.
Eton
CCucionand

what is she answer