Hello, this basic limit problem puzzles me:

$\displaystyle

\lim_{x\rightarrow \ -2} \frac{x-1}{x+2}

$

My intuition says, that there isn't limit on this spot, because I couldn't modify(tried factorize or divide with x etc.) expression to shape, where the function is defined. Graphing the function didn't help either. But, maybe there is some way...? Any help is appreciated, thanks!