General Inequalities and Their Applications
Inequalities with variables on both sides
Source: Khan Academy, https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:solve-equations-inequalities/x2f8bb11595b61c86:multistep-inequalities/v/multi-step-inequalities-3 This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.