To solve the inequality \( -3y > 21 \), we can follow these steps:
- Divide both sides by \(-3\). Remember that dividing or multiplying by a negative number reverses the inequality.
\[ y < \frac{21}{-3} \]
- Simplifying \(\frac{21}{-3}\) gives:
\[ y < -7 \]
So, the correct inequality that gives the range of values for \(y\) is:
y < -7 (y less than negative 7)