Linear Equations

An equation that can be written of the form

where and are (fixed) real numbers and is the variable (or the unknown) is called a linear equation. To solve the equation, subtract from both sides

and then divide both sides of the resulting equation, , by :

(Sometimes, this process is described as "transferring to the other side of the equation and then "moving the coefficient to the denominator of ".)

• The solution of is the -intercept of the straight line (the -intercept is where the graph intersects the -axis).