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