What do you mean by linear equation? A two-variable linear equation describes a relationship in which the value of one of the variables depends on the value of the other variable.
A linear equation is defined for lines in the coordinate system. In general, the straight line equation is y = mx + b, where b = y-intercept and m = slope of the line. These equations are also known as first order equations.
Equations such as 2y = 3 + x, x/2 = y – 3 and 3 = x + y are linear equations.
A few interesting facts about a linear equation: