1. **State the problem:** Simplify the expression $-hk + hq + hq$. 2. **Identify like terms:** The terms $hq$ and $hq$ are like terms because they have the same variables. 3. **Combine like terms:** $$hq + hq = 2hq$$ 4. **Rewrite the expression:** $$-hk + 2hq$$ 5. **Final simplified expression:** $$-hk + 2hq$$ This is the simplest form since $-hk$ and $2hq$ are unlike terms and cannot be combined further.