The videos below are also helpful:
https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-inequalities/v/multi-step-inequalities-2
https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-inequalities/v/multi-step-inequalities-3
Homework: Exercise 11.3 (page 50) # 1 (all) and # 2 (a - e)
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