I am taking an algebra class and i am lost when it comes to graphing and shading a solution set.

I am taking an algebra class and i am lost when it comes to graphing and shading a solution set. Looking for a brief explanation for the best method for finding the solution set and shading of that of a system of linear inequalities in two variables in the Cartesian Coordinate system and a little example that i can use to help me understand. Thank you