What is the second case of solving a system of linear equations with two variables, as indicated by the text?

Case 2: Parallel Lines (Indicated)

• Condition: The two lines represented by the equations are parallel.
• Graphical Representation: The text mentions "Рис. 71" (Fig. 71) which would show parallel lines.
• Number of Solutions: If the lines are parallel and distinct, there are no solutions because they never intersect. If the lines are coincident (the same line), there are infinitely many solutions. The text seems to imply the case of distinct parallel lines.