When doing substitution to solve a system of equations, how can i tell if it has one solution, no solution, or infinitely many solutions.
Poor Man's Definitions:
1) If you get one, there is one. Example x = 3
2) If you get nonsense, there is none. Example 3 = 7
3) If you get "duh", there are many. Example 12 = 12
1) If you get one, there is one. Example x = 3
2) If you get nonsense, there is none. Example 3 = 7
3) If you get "duh", there are many. Example 12 = 12