The document summarizes how to solve absolute value equations and inequalities. It explains that the expression inside the absolute value symbols can be positive or negative. It provides an example of an absolute value equation that has two solutions and shows how to check the solutions. It also discusses how absolute value symbols work like parentheses in order of operations and must be solved last. The document notes that absolute value inequalities create two separate inequalities joined by "and" or "or" and provides an example. It explains that the solution to an absolute value inequality is written as an interval and should be graphed. Another example of solving and graphing an absolute value inequality is given.