\[10 + \dfrac{54}{-6}\]

To calculate the expression \[10 + \dfrac{54}{-6}\], first solve the division within the fraction:

\[ \dfrac{54}{-6} = -9 \]

Now, take that result and add it to 10:

\[ 10 + (-9) = 10 - 9 = 1 \]

So, the final answer is 1.