Which of the following equations has exactly one solution?

-8x+3=-8x+3
-3x+8=-3-8

The equation -8x+3=-8x+3 has exactly one solution because when you simplify it, you get 0=0, which is a true statement for any value of x. This means that there is only one unique solution for this equation, which is x can take on any value.

On the other hand, the equation -3x+8=-3-8 simplifies to -3x+8=-11, which has no solution since there is no value of x that can satisfy that equality.