To solve the equation \( -3(y + 6) = 21 \), the first step is to isolate the term that includes \( y \).
- Start by dividing both sides by \( -3 \). This gives you: \[ y + 6 = -7 \]
The second step is then to isolate \( y \) by subtracting \( 6 \) from both sides.
Therefore, the second step in this process is:
Subtract 6 from both sides.