SOLVING EQUATIONS - Focusing on SOLUTION SETS When is the answer 0, when is the answer NO SOLUTION, and when is the answer ALL REAL NUMBERS. I have seen where text books will even throw in Infinitely many solutions, in replace of All Real Numbers. "Infinitely Many Solutions" is when you are solving a system, and every solution (x, y) or (x, y, z) that satisfies one equation satisfies the 2nd or 3rd equation. This activity focuses on solving equations from basic to more challenging equati