Mathematics, 04.10.2020 14:01 101EXPERIENCE
Carter solved the equation, 7(n−4)=28, for n. When he submitted his work, his teacher said that one of his justifications was incorrect.
In which step is Carter's justification incorrect?
Step Justification
1. 7(n−4)=28
Given
2. 7n−28=28
Distributive Property
3. 7n=56
Addition Property of Equality
4. n=8
Multiplication Property of Equality
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