Let's simplify the expression step by step. The expression you provided can be written mathematically as:
\[ 3 + \left(-\frac{18}{2}\right) \times 3 \]
First, simplify the fraction \(-\frac{18}{2}\):
\[ -\frac{18}{2} = -9 \]
Now substitute this back into the expression:
\[ 3 + (-9) \times 3 \]
Next, calculate \((-9) \times 3\):
\[ -9 \times 3 = -27 \]
Now the expression becomes:
\[ 3 - 27 \]
Finally, simplify \(3 - 27\):
\[ 3 - 27 = -24 \]
Thus, the simplified expression is:
\[ \boxed{-24} \]