To simplify the expression \( 9\left(k + \frac{1}{3}\right) + 10\left(\frac{1}{2}k - 1\right) \), we can use the distributive property to expand each term, and then combine like terms.
- Distribute \(9\) and \(10\):
\[ 9\left(k + \frac{1}{3}\right) = 9k + 9 \cdot \frac{1}{3} = 9k + 3 \]
\[ 10\left(\frac{1}{2}k - 1\right) = 10 \cdot \frac{1}{2}k - 10 \cdot 1 = 5k - 10 \]
- Now combine the results from both distributions:
\[ 9k + 3 + 5k - 10 \]
- Combine the like terms (\(9k\) and \(5k\), as well as the constants \(3\) and \(-10\)):
\[ (9k + 5k) + (3 - 10) = 14k - 7 \]
Therefore, the simplified expression is:
\[ \boxed{14k - 7} \]