In this chapter, particularly focused on linear equations in two variables, we conclude by introducing the concept of a linear equation represented in the form \( ax + by + c = 0 \), where \( a, b, c \) are real numbers with both \( a \) and \( b \) not being zero simultaneously. Furthermore, it is established that such equations have infinitely many solutions, indicating that each point on the graph of these equations is a valid solution, and inversely, each solution corresponds to a point on the graph. Thus, it reinforces the understanding that the interplay between algebraic expressions and their graphical representations is crucial in grasping the concept of linear equations.