Objective. 1  Closely read and reread a nonfiction text, and analyze the author's main points. 2  Explain how the author uses evidence and reasons to support his major ideas in the text.
In United States tax law, the windfall elimination provision is a regulation that aims to prevent retirees from receiving more Social Security benefits than they are entitled to, based on their payments into the Social Security system during their working years.
Gaussian elimination is a step-by-step procedure that starts with a system of linear equations, or an augmented matrix, and transforms it into another system which is easier to solve. Usually, we end up being able to easily determine the value of one of our variables, and, using that variable we can apply back-substitution to solve the rest of the system.