What does the word \emph{algebra} mean? \begin{solutionordottedlines}[1in] Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols; it is a unifying thread of almost all of mathematics. \end{solutionordottedlines} Where does the word \textbf{algebra} come from? \begin{solutionordottedlines}[1in] The word "algebra" comes from the Arabic word "al-jabr" which means "reunion of broken parts," and it was used in the title of a book by the mathematician Al-Khwarizmi. \end{solutionordottedlines} What is an example of \textit{algebra}? \begin{solutionordottedlines}[1in] An example of algebra is solving for \( x \) in the equation \( 2x + 3 = 7 \). The solution would be \( x = 2 \). \end{solutionordottedlines} What can I do with \textsc{algebra}? \begin{solutionordottedlines}[1in] With algebra, you can solve equations, work with unknowns, model real-world situations, and understand how different mathematical symbols and functions relate to one another. \end{solutionordottedlines}