1/2(8-x)=8-x/2
(1/2) · (8 - x) = (8 - x) / 2
So, we have: (8 - x) / 2 = 8 - x / 2
Multiply each term by 2 to eliminate fractions: 8 - x = 16 - x
Add x to both sides: 8 = 16
Since this is not possible the original "equation" was not really an equation.