1. **Problem:** Solve the equation $$-3y + 17 = 56$$. 2. **Step 1:** Subtract 17 from both sides to isolate the term with $y$. $$-3y + 17 - 17 = 56 - 17$$ $$-3y = 39$$ 3. **Step 2:** Divide both sides by $-3$ to solve for $y$. $$y = \frac{39}{\cancel{-3}} \times \frac{\cancel{-1}}{1} = -13$$ 4. **Answer:** The solution is $$y = -13$$. This means when $y$ is $-13$, the original equation holds true.