Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. identify any errors in his work or in his reasoning. write feedback to andrew explaining the mistake he made and how to correct his work. step work reasoning −4.5 + 4.2 + 5.6 − 7.3 original problem 1 −4.5 + 4.2 + 5.6 + (−7.3) additive inverse 2 −4.5 + (−7.3) + 4.2 + 5.6 commutative property 3 (−4.5 + (−7.3)) + (4.2 + 5.6) associative property 4 −11.8 + 9.8 simplify 5 −21.6 simplify