number=number
form, the solution to the equation does not depend on its variable(s). It means the equation works for any value of the variable. This happens when we have the same expression or quantity on both sides. For example:
0=0 or 2x=2x.
These are completely true regardless of our choice of x. There is no difference in terms of validity between 0=0 and 2x=2x. When we have this case, we say that there are infinitely many solutions, because any value for the variable will work.
