To solve the equation \( -4x - 4y = 4 \) for \( y \) when \( x = 9 \), we can substitute \( x = 9 \) into the equation.
Starting with the original equation:
\[ -4(9) - 4y = 4 \]
Calculating \( -4(9) \):
\[ -36 - 4y = 4 \]
Now, we want to isolate \( y \). First, we can add \( 36 \) to both sides of the equation:
\[ -4y = 4 + 36 \]
Which simplifies to:
\[ -4y = 40 \]
Next, we divide both sides by \( -4 \):
\[ y = \frac{40}{-4} \]
So,
\[ y = -10 \]
Thus, when \( x = 9 \), the value of \( y \) is \( -10 \).
The solution is:
\[ y = -10 \]