Let \[f(x) = \frac{3x - 7}{x + 1}.\] Find the domain of $f$. Give your answer as an interval.
Please give the answer in interval notation! I tried (-inf, 3)U(3, inf) but it is not the answer.
\(f(x) = \frac{3x - 7}{x + 1}\)
x+1=0
x=-1
(-inf, -1)U(-1, inf)
+1242 
