A:
- Systems of two equations with two unknowns
- One equation with two unknowns
B:
- Systems of three equations with three unknowns
- Using matrices to solve systems of equations
- Solvability of systems of equations
- Cramer's rule
- Word problems
- Systems of equations with parameters
C:
- Systems of inequalities
- One inequality with two unknowns
- Two inequalities with one unknown
