(4x+8)/5 not equal to 8
Since the question actually asks where the left side IS NOT EQUAL to 8
The answer is actually
All real x EXCEPT x=8
x=8
(4x+8)/5 = 8 multiply both by 5, to cancel denomentor
(4x+8) = 40 not subract 8 from the left, then place on the right side
4x = 32 now just divide by 4
x = 8