You can put this solution on YOUR website! You are probably used to graphing linear equations in 2 variables. That ends up being a line on a 2 dimensional coordinate system.
When graphing a linear equation in 3 variables, you end up with a plane in a 3 dimensional coordinate system.
See this URL --> http://academic.cuesta.edu/jpandosh/3x3_supp/web/3x3_sys.pdf
The method shown there is a great way to do what you are trying to do.
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