I am sure that this chapter is considered easy by many CAT 2007/ 2008 aspirants. But it is one of the most frequently occurring chapters in CAT. Mastery with equations helps you solve many problems in other areas also. As we progress deeper into Algebra on TG, we think it would be better to stat with this small but useful lesson. As your D- day comes nearer, revising some old concepts wouldn’t hurt you.
Any equation of the form p = 0, where p is a polynomial of degree one, is known as a linear equation. The polynomial p can contain a single variable, two variables, or more than two variables. Some examples of linear equations are given below: