I mean, if I have
5x+2=27, do you think it has an answer? Either way, it does.
-2 -2
5x=25
x=5
However, what if I had
5x - 2 = 5x - 2?
-5x -5x
-2=-2. Yes, this is a solution, but not for x. You'd call it something else.
But what about
5x - 2 = 5x + 5?
-5x -5x
-2 = 5 This is wrong, so it's no solution!
That means your answer is "sometimes"!