2) \( \frac{9}{x+1}-\frac{2 x}{x+1} \)

Did you know that combining fractions is a lot like putting together puzzle pieces? Both fractions share the same denominator, so you simply need to combine the numerators. Here, you'll get \( \frac{9 - 2x}{x + 1} \). It’s like having a lone pizza slice waiting for its toppings! Now, for the fun part—make sure to consider the values that \( x \) can't take; in this case, \( x \) cannot equal -1 because that would cause the denominator to become zero. It’s essential to keep your math tidy and avoid those “undefined” messes!