For some rational function \(f(x),\) the graph of \(y = f(x)\) has an oblique asymptote of \(y = 5x + 7.\) Find the equation of the horizontal asymptote of the graph of \(y = \frac{f(x)}{x - 2}.\)

I'd be interested in seeing this one done too

Oblique asymptotes are a mystery to me.