It's yet another example of the ambiguous equations that keep turning up.
Is it supposed to be (e +4)/(e-2) = 1/3, (which I suspect is the case), or is it 'as written',
e + (4/e) - 2 = 1/3 ?
If it's the first then simply cross multiply and solve the resulting linear equation, if it's the second, multiply throughout by e and solve the quadratic.