1. The problem statement, all variables and given/known data Every underdetermined system of linear equations has infinitely many solutions. (True/False) 2. Relevant equations N/A 3. The attempt at a solution Every source I have found, including several textbooks, say that underdetermined systems "often" or "usually" have an infinite number of solutions, so I'm assuming the answer is false, but I can't think of an example that shows an underdetermined system that does not have infinitely many solutions. Any ideas?