Properties of Identity, Inverses, and Zero
Read the first paragraph of this section to see examples of how the inverse property of addition is applied. Then, do example 7.34 and Try It exercises 7.67 and 7.68.
Click https://cnx.org/contents/yqV9q0HH@20.3:IOqEQ0kt@20/7-4-Properties-of-Identity-Inverses-and-Zero link to open resource.