Arlene is showing her work in simplifying -7.9 + 8.2 - 3.4 + 2.1 identify any errors in her work or in her reasoning. IF YOU ANSWER ILL GIVE YOU ALL POINTS -7.9 + 8.2 - 3.4 + 2.1 original form

-7.9 + 8.2 + (-3.4) + 2.1 Additive inverse

-7.9 + (-3.4)) + 8.2 + 2.1 Associative property

(-7.9 + (-3.4)) + (8.2 + 2.1)
Commutative property

-11.3 + 10.3 simplify

-1 simplify