Solving linear equations

Linear equation is an algebraic expression in which each terms has degree not more than 1. Linear equation can have one or more variables.

A linear equation can be written as y = m + bx, where m and b are constants.

Let's solve linear equations by taking some examples.
Find x if 4x - 4y = 8
       Soln.4x = 8 + 4y
               4x/4 = 8/4 + 4y/4
               x = 2 + y
      substituting the value of x in the initial equation, we get
          8 + 4y - 4y = 8
                        8 = 8