Explanation:
28/x = 0
this equation is only defined for x <> 0. for x = 0 this turns into n/0, which is undefined.
under this definition that x is not 0 we can multiply both sides by x and get
28 = 0×x = 0
28 = 0 is never true no matter what value we pick for x.
so, this has no solutions.
e.g. x = 1 makes it
28/1 = 0
28 = 0 is simply false in all cases.
e.g. x = 2 makes it
28/2 = 0
14 = 0 is also simply false in all cases