How do you know when an equation has infinitely many solutions?
How do you know when an equation has no solution?
Algebra help please! - Reiny, Thursday, May 15, 2008 at 8:17pm
If the variable drops out, and you end up with a true statement, then there is an infinite number so solutions,
if the end statement is false, there is not solution
2x - 4 = 2(x-2)
2x-4 = 2x-4
0 = 0 ..... infinite number of solutions
2x-4 = 2(x-5)
2x-4 = 2x-10
-4 = -10 ... false!, no solution
Algebra help please! - Ann, Thursday, May 15, 2008 at 10:36pm
Algebra help please! - Anonymous, Monday, March 14, 2016 at 11:48am